Two new silicate structures based on a rhodesite-type heteropolyhedral microporous framework

Two new members of the mero-plesiotype rhodesite series [Sr₂Na₂(Si₈O₁₉)·4H₂O, abbreviated as TR09; SrNa₄(Si₈O₁₉)·4H₂O, TR10] have been hydrothermally synthesized in Teflon-lined autoclaves at 503 K and structurally characterized using X-ray diffraction single-crystal data. The crystal structures were solved by direct methods and refined to R = 0.021 [TR09; 3317 reflections with I_o > 2σ(I_o)] and R = 0.033 [TR10; 5007 reflections with I_o > 2σ(I_o)]. Both structures are based on a rhodesite-type microporous heteropolyhedral framework, where two types of channels are within the double silicate layer that alternates with an `octahedral' O sheet. The large Sr²⁺ cation constrains to the roughly ellipsoidal shape of the channels. The H₂O molecules are located both in the O sheets and in the channels, where they are loosely hydrogen bonded. The crystal-chemical features that allow flexibility to the rhodesite-type microporous heteropolyhedral framework and make it interesting for possible technological applications are discussed.

Computing details

For both structures, data collection: CrysAlis CCD, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29-11-2007 CrysAlis171 .NET) (compiled Nov 29 2007,17:23:28); cell refinement: CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29-11-2007 CrysAlis171 .NET) (compiled Nov 29 2007,17:23:28). Data reduction: CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29-11-2007 CrysAlis171 .NET) (compiled Nov 29 2007,17:23:28) for TR09; CrysAlis PRO 171.32.13 for TR010. Program(s) used to solve structure: SHELXS86 (Sheldrick, 1986) for TR09; SHELXL97 (Sheldrick, 1997) for TR010. For both structures, program(s) used to refine structure: SHELXL97 (Sheldrick, 1997). Molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) for TR09; ATOMS 6.2 for TR010. Software used to prepare material for publication: WinGX publication routines (Farrugia, 1999) for TR09.

BisSodium BisStrontium Octasilicate TetraHydrate (TR09)

Crystal data

Na2O19Si8Sr24(H2O)	F(000) = 1608
Mr = 822.00	Dx = 2.549 Mg m^−3 Dm = 2.8 Mg m^−3 Dm measured by not measured
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
a = 22.7681 (2) Å	Cell parameters from 18102 reflections
b = 6.9352 (1) Å	θ = 3.0–32.6°
c = 13.5789 (1) Å	µ = 5.58 mm^−1
β = 92.578 (1)°	T = 293 K
V = 2141.96 (4) Å^3	Prism, colourless
Z = 4	0.1 × 0.1 × 0.06 mm

Data collection

Oxford 'X Calibur Gemini Ultra diffractometer	3801 independent reflections
Radiation source: fine-focus sealed tube	3317 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.030
Detector resolution: 10.2890 pixels mm^-1	θmax = 32.7°, θmin = 3.0°
phi/ω scans	h = −34→34
Absorption correction: multi scan CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29-11-2007 CrysAlis171 .NET) (compiled Nov 29 2007,17:23:28) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm.	k = −10→10
Tmin = 0.678, Tmax = 1.000	l = −20→20
33115 measured reflections

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.021	H-atom parameters not defined
wR(F^2) = 0.080	w = 1/[σ^2(Fo^2) + (0.1P)^2] where P = (Fo^2 + 2Fc^2)/3
S = 0.64	(Δ/σ)max = 0.001
3801 reflections	Δρmax = 0.67 e Å^−3
176 parameters	Δρmin = −0.77 e Å^−3
0 restraints

Special details

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq	Occ. (<1)
Sr1	0.230255 (7)	0.05478 (2)	0.285074 (12)	0.01166 (6)
Na1A	0.2560 (5)	0.205 (4)	0.0103 (9)	0.021 (2)	0.41 (5)
Na1B	0.2500	0.2500	0.0000	0.011 (4)*	0.19 (10)
Na2	0.0000	−0.4774 (2)	0.2500	0.0256 (3)
Si1	0.38207 (2)	0.22489 (7)	0.34130 (3)	0.00815 (10)
Si2	0.06306 (2)	0.02662 (7)	0.27778 (3)	0.00617 (9)
Si3	0.12176 (2)	0.00371 (7)	0.48267 (3)	0.00905 (10)
Si4	0.13289 (2)	0.29376 (6)	0.14488 (3)	0.00692 (9)
O1	0.31879 (6)	0.2654 (2)	0.29484 (11)	0.0174 (3)
O2	0.39274 (7)	0.3042 (2)	0.45335 (10)	0.0177 (3)
O3	0.40168 (6)	−0.00207 (18)	0.34627 (10)	0.0124 (2)
O4	0.43473 (6)	0.31930 (18)	0.27663 (10)	0.0129 (2)
O5	0.07045 (7)	0.0026 (2)	0.39463 (10)	0.0154 (3)
O6	0.11451 (5)	0.16453 (18)	0.24108 (9)	0.0110 (2)
O7	0.0000	0.1274 (3)	0.2500	0.0104 (3)
O8	0.18615 (7)	0.0043 (3)	0.44556 (12)	0.0236 (3)
O9	0.10550 (6)	−0.18733 (19)	0.54689 (9)	0.0151 (3)
O10	0.20195 (5)	0.30527 (18)	0.14957 (9)	0.0107 (2)
OW1	0.05391 (13)	−0.4956 (3)	0.40418 (17)	0.0515 (7)
OW2A	0.2010 (11)	0.5637 (14)	−0.1123 (5)	0.064 (4)	0.73 (4)
OW2B	0.2246 (6)	0.5864 (16)	−0.0979 (13)	0.024 (4)	0.27 (4)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sr1	0.00849 (9)	0.00975 (9)	0.01653 (9)	−0.00028 (5)	−0.00171 (6)	0.00336 (5)
Na1A	0.0184 (15)	0.028 (6)	0.0157 (17)	−0.004 (3)	0.0048 (11)	−0.005 (3)
Na2	0.0223 (7)	0.0260 (6)	0.0286 (7)	0.000	0.0005 (5)	0.000
Si1	0.0083 (2)	0.0057 (2)	0.0104 (2)	−0.00050 (15)	−0.00076 (15)	0.00063 (15)
Si2	0.0058 (2)	0.00650 (19)	0.00611 (19)	0.00014 (14)	−0.00032 (15)	0.00036 (14)
Si3	0.0106 (2)	0.0097 (2)	0.0069 (2)	0.00078 (17)	0.00033 (16)	0.00024 (16)
Si4	0.0072 (2)	0.0053 (2)	0.00820 (18)	−0.00049 (15)	−0.00045 (15)	−0.00006 (14)
O1	0.0114 (6)	0.0123 (6)	0.0280 (7)	−0.0008 (5)	−0.0052 (5)	0.0052 (5)
O2	0.0268 (8)	0.0137 (6)	0.0127 (6)	0.0025 (5)	−0.0006 (5)	−0.0039 (5)
O3	0.0126 (6)	0.0052 (5)	0.0193 (6)	−0.0007 (4)	−0.0002 (5)	0.0007 (4)
O4	0.0118 (6)	0.0096 (5)	0.0178 (6)	0.0002 (5)	0.0038 (5)	0.0049 (5)
O5	0.0162 (6)	0.0222 (6)	0.0076 (5)	−0.0007 (5)	−0.0020 (5)	0.0024 (5)
O6	0.0096 (5)	0.0105 (5)	0.0128 (5)	−0.0012 (4)	0.0006 (4)	0.0037 (4)
O7	0.0078 (7)	0.0088 (8)	0.0142 (8)	0.000	−0.0027 (6)	0.000
O8	0.0134 (7)	0.0365 (9)	0.0213 (7)	0.0019 (6)	0.0072 (6)	0.0003 (6)
O9	0.0180 (7)	0.0133 (6)	0.0134 (5)	−0.0009 (5)	−0.0048 (5)	0.0053 (5)
O10	0.0080 (5)	0.0120 (6)	0.0121 (5)	−0.0016 (4)	0.0016 (4)	−0.0005 (4)
OW1	0.083 (2)	0.0373 (10)	0.0319 (11)	−0.0048 (12)	−0.0187 (12)	0.0012 (9)
OW2A	0.085 (11)	0.065 (3)	0.044 (2)	0.028 (4)	0.005 (4)	0.009 (2)
OW2B	0.005 (6)	0.031 (5)	0.036 (5)	0.005 (3)	0.001 (3)	0.012 (3)

Geometric parameters (Å, º)

Sr1—O10^i	2.4580 (12)	O2—O9^xii	2.6577 (19)
Sr1—O8	2.4651 (16)	O2—O8^xii	2.664 (2)
Sr1—O1	2.4882 (14)	O2—OW1^xiii	3.096 (3)
Sr1—O1^i	2.5184 (13)	O3—Si4^i	1.6271 (13)
Sr1—O10	2.5907 (13)	O3—O4	2.5479 (18)
Sr1—O6	2.7820 (13)	O3—O9^xiii	2.6063 (18)
Sr1—OW2B^ii	2.952 (14)	O3—O6^i	2.6172 (18)
Sr1—OW2B^iii	2.959 (10)	O3—Na2^xi	2.6482 (14)
Sr1—OW2A^ii	2.993 (10)	O3—O10^i	2.7143 (18)
Sr1—OW2A^iii	3.077 (12)	O3—OW1^xiii	3.492 (3)
Sr1—Si4	3.3024 (5)	O4—Si2^vi	1.6184 (13)
Sr1—Na1A^iv	3.576 (3)	O4—Na2^xi	2.5729 (17)
Na1A—Na1A^ii	0.73 (7)	O4—O7^xi	2.6371 (19)
Na1A—O8^v	2.299 (6)	O4—O5^vi	2.6481 (19)
Na1A—OW2B^ii	2.38 (3)	O4—O6^vi	2.6501 (18)
Na1A—O10	2.404 (6)	O4—O4^xiv	3.090 (3)
Na1A—O10^ii	2.413 (6)	O4—OW1^vi	3.305 (3)
Na1A—OW2A^ii	2.50 (3)	O4—Sr1^vi	4.1469 (13)
Na1A—O8^vi	2.516 (15)	O5—O9	2.5490 (18)
Na1A—OW2B	3.09 (3)	O5—O2^xii	2.5700 (19)
Na1A—OW2A	3.21 (3)	O5—O6	2.6083 (18)
Na1A—Si4^ii	3.365 (3)	O5—O7	2.6262 (15)
Na1A—O9^vi	3.366 (4)	O5—O4^i	2.6481 (19)
Na1A—Si3^v	3.387 (3)	O5—O8	2.693 (2)
Na1B—Na1A^ii	0.36 (3)	O5—OW1	3.479 (3)
Na1B—O10^ii	2.3809 (12)	O6—O10	2.5851 (17)
Na1B—O10	2.3809 (12)	O6—O3^vi	2.6172 (18)
Na1B—O8^v	2.3821 (18)	O6—O7	2.6280 (12)
Na1B—O8^vi	2.3821 (18)	O6—O9^v	2.6404 (17)
Na1B—OW2B^ii	2.734 (11)	O6—O4^i	2.6501 (18)
Na1B—OW2B	2.734 (11)	O6—O1^i	3.2050 (19)
Na1B—OW2A	2.855 (8)	O6—OW2A^iii	3.323 (13)
Na1B—OW2A^ii	2.855 (8)	O6—O8	3.346 (2)
Na1B—Si4^ii	3.3977 (5)	O7—Si2^vii	1.6261 (9)
Na1B—Si4	3.3977 (5)	O7—O5^vii	2.6262 (15)
Na1B—O9^vi	3.4070 (14)	O7—O6^vii	2.6280 (12)
Na2—OW1	2.382 (2)	O7—O4^viii	2.6371 (19)
Na2—OW1^vii	2.382 (2)	O7—O4^i	2.6371 (19)
Na2—O4^i	2.5729 (17)	O7—Na2^xv	2.741 (2)
Na2—O4^viii	2.5729 (17)	O8—Na1A^iv	2.299 (6)
Na2—O3^viii	2.6482 (14)	O8—Na1B^i	2.3821 (18)
Na2—O3^i	2.6482 (14)	O8—Na1A^i	2.516 (15)
Na2—O7^ix	2.741 (2)	O8—O2^xii	2.664 (2)
Na2—Si1^i	3.3186 (7)	O8—O9	2.694 (2)
Na2—Si1^viii	3.3186 (7)	O8—OW2B^i	2.891 (19)
Na2—O6^x	3.6067 (16)	O8—OW2B^iii	3.036 (11)
Na2—O6^ix	3.6067 (16)	O8—OW2A^iii	3.120 (8)
Si1—O1	1.5720 (14)	O8—O10^i	3.219 (2)
Si1—O2	1.6256 (14)	O9—Si4^iv	1.6216 (13)
Si1—O3	1.6367 (13)	O9—O3^xiii	2.6063 (18)
Si1—O4	1.6530 (13)	O9—O6^iv	2.6404 (17)
Si1—Na2^xi	3.3186 (7)	O9—O2^xii	2.6577 (19)
Si1—Sr1^vi	3.7848 (5)	O9—O10^iv	2.6758 (18)
Si2—O5	1.5968 (14)	O9—OW1	3.082 (3)
Si2—O6	1.6085 (13)	O9—Na1A^i	3.366 (4)
Si2—O4^i	1.6183 (13)	O9—Na1B^i	3.4070 (14)
Si2—O7	1.6261 (9)	O9—Na1A^iv	3.486 (9)
Si3—O8	1.5715 (16)	O10—Na1A^ii	2.413 (6)
Si3—O2^xii	1.6326 (14)	O10—Sr1^vi	2.4580 (12)
Si3—O5	1.6335 (15)	O10—O9^v	2.6758 (18)
Si3—O9	1.6377 (14)	O10—O3^vi	2.7143 (18)
Si3—Na1A^iv	3.387 (3)	O10—O8^vi	3.219 (2)
Si3—Na1B^i	3.4080 (5)	O10—OW2B^ii	3.283 (10)
Si3—Na1A^i	3.467 (8)	OW1—O2^xiii	3.096 (3)
Si4—O10	1.5728 (13)	OW1—O4^i	3.305 (3)
Si4—O9^v	1.6216 (13)	OW1—OW2A^iv	3.40 (3)
Si4—O3^vi	1.6271 (13)	OW1—O3^xiii	3.492 (3)
Si4—O6	1.6534 (12)	OW2A—OW2B	0.585 (12)
Si4—Na1A^ii	3.365 (3)	OW2A—Na1A^ii	2.50 (3)
Si4—Sr1^vi	3.6912 (5)	OW2A—Sr1^ii	2.993 (10)
O1—Sr1^vi	2.5184 (13)	OW2A—Sr1^xvi	3.077 (12)
O1—O2	2.686 (2)	OW2A—O8^xvi	3.120 (8)
O1—O4	2.6884 (19)	OW2A—O1^xvi	3.24 (2)
O1—O3	2.7152 (19)	OW2A—O6^xvi	3.323 (13)
O1—OW2B^iii	2.839 (9)	OW2A—O10^xvi	3.360 (5)
O1—O6^vi	3.2050 (19)	OW2A—O8^vi	3.37 (2)
O1—OW2A^iii	3.24 (2)	OW2A—O1^ii	3.384 (13)
O1—O10	3.2515 (19)	OW2B—Na1A^ii	2.38 (3)
O1—O10^i	3.3181 (18)	OW2B—O1^xvi	2.839 (9)
O1—OW2A^ii	3.384 (13)	OW2B—O8^vi	2.891 (19)
O2—Si3^xii	1.6326 (14)	OW2B—Sr1^ii	2.952 (14)
O2—O5^xii	2.5700 (19)	OW2B—Sr1^xvi	2.959 (10)
O2—O3	2.5869 (19)	OW2B—O8^xvi	3.036 (11)
O2—O4	2.6249 (19)	OW2B—O10^ii	3.283 (10)
O10^i—Sr1—O8	81.67 (5)	O2—O4—O5^vi	144.92 (7)
O10^i—Sr1—O1	84.26 (4)	O7^xi—O4—O5^vi	59.59 (4)
O8—Sr1—O1	113.42 (5)	Si2^vi—O4—O6^vi	34.67 (4)
O10^i—Sr1—O1^i	81.59 (4)	Si1—O4—O6^vi	95.28 (6)
O8—Sr1—O1^i	94.44 (6)	O3—O4—O6^vi	133.88 (7)
O1—Sr1—O1^i	146.43 (3)	Na2^xi—O4—O6^vi	162.61 (6)
O10^i—Sr1—O10	149.385 (13)	O2—O4—O6^vi	87.08 (6)
O8—Sr1—O10	128.67 (5)	O7^xi—O4—O6^vi	59.61 (5)
O1—Sr1—O10	79.59 (4)	O5^vi—O4—O6^vi	58.98 (5)
O1^i—Sr1—O10	97.87 (4)	Si2^vi—O4—O1	102.48 (7)
O10^i—Sr1—O6	147.52 (4)	Si1—O4—O1	32.59 (4)
O8—Sr1—O6	78.99 (5)	O3—O4—O1	62.40 (5)
O1—Sr1—O6	127.46 (4)	Na2^xi—O4—O1	118.52 (6)
O1^i—Sr1—O6	74.22 (4)	O2—O4—O1	60.72 (5)
O10—Sr1—O6	57.39 (4)	O7^xi—O4—O1	133.39 (6)
O10^i—Sr1—OW2B^ii	80.8 (3)	O5^vi—O4—O1	98.18 (6)
O8—Sr1—OW2B^ii	152.3 (2)	O6^vi—O4—O1	73.79 (5)
O1—Sr1—OW2B^ii	85.9 (3)	Si2^vi—O4—O4^xiv	80.98 (5)
O1^i—Sr1—OW2B^ii	61.9 (3)	Si1—O4—O4^xiv	148.49 (7)
O10—Sr1—OW2B^ii	72.3 (2)	O3—O4—O4^xiv	112.96 (5)
O6—Sr1—OW2B^ii	105.6 (3)	Na2^xi—O4—O4^xiv	53.09 (3)
O10^i—Sr1—OW2B^iii	116.1 (4)	O2—O4—O4^xiv	127.42 (8)
O8—Sr1—OW2B^iii	67.4 (3)	O7^xi—O4—O4^xiv	54.13 (4)
O1—Sr1—OW2B^iii	62.1 (2)	O5^vi—O4—O4^xiv	78.45 (6)
O1^i—Sr1—OW2B^iii	150.7 (2)	O6^vi—O4—O4^xiv	112.72 (4)
O10—Sr1—OW2B^iii	78.6 (4)	O1—O4—O4^xiv	168.58 (7)
O6—Sr1—OW2B^iii	79.7 (3)	Si2^vi—O4—OW1^vi	104.06 (7)
OW2B^ii—Sr1—OW2B^iii	140.1 (4)	Si1—O4—OW1^vi	102.47 (8)
O10^i—Sr1—OW2A^ii	75.4 (2)	O3—O4—OW1^vi	74.45 (6)
O8—Sr1—OW2A^ii	154.44 (11)	Na2^xi—O4—OW1^vi	45.75 (5)
O1—Sr1—OW2A^ii	75.6 (5)	O2—O4—OW1^vi	134.16 (7)
O1^i—Sr1—OW2A^ii	71.4 (4)	O7^xi—O4—OW1^vi	111.73 (6)
O10—Sr1—OW2A^ii	75.49 (15)	O5^vi—O4—OW1^vi	70.53 (6)
O6—Sr1—OW2A^ii	115.5 (4)	O6^vi—O4—OW1^vi	125.21 (7)
OW2B^ii—Sr1—OW2A^ii	11.3 (2)	O1—O4—OW1^vi	94.96 (7)
OW2B^iii—Sr1—OW2A^ii	133.5 (4)	O4^xiv—O4—OW1^vi	73.62 (6)
O10^i—Sr1—OW2A^iii	126.0 (4)	Si2^vi—O4—Sr1^vi	66.69 (5)
O8—Sr1—OW2A^iii	67.47 (11)	Si1—O4—Sr1^vi	65.87 (4)
O1—Sr1—OW2A^iii	70.3 (4)	O3—O4—Sr1^vi	98.02 (5)
O1^i—Sr1—OW2A^iii	141.2 (4)	Na2^xi—O4—Sr1^vi	144.11 (5)
O10—Sr1—OW2A^iii	72.1 (2)	O2—O4—Sr1^vi	80.60 (4)
O6—Sr1—OW2A^iii	68.9 (5)	O7^xi—O4—Sr1^vi	99.44 (4)
OW2B^ii—Sr1—OW2A^iii	140.0 (2)	O5^vi—O4—Sr1^vi	68.25 (4)
OW2B^iii—Sr1—OW2A^iii	10.89 (18)	O6^vi—O4—Sr1^vi	41.43 (3)
OW2A^ii—Sr1—OW2A^iii	136.2 (2)	O1—O4—Sr1^vi	35.81 (3)
O10^i—Sr1—Si4	162.91 (3)	O4^xiv—O4—Sr1^vi	145.56 (5)
O8—Sr1—Si4	106.93 (4)	OW1^vi—O4—Sr1^vi	102.16 (6)
O1—Sr1—Si4	104.91 (3)	Si2—O5—Si3	140.05 (10)
O1^i—Sr1—Si4	83.01 (3)	Si2—O5—O9	151.06 (9)
O10—Sr1—Si4	27.75 (3)	Si3—O5—O9	38.87 (5)
O6—Sr1—Si4	30.01 (3)	Si2—O5—O2^xii	139.43 (9)
OW2B^ii—Sr1—Si4	85.5 (3)	Si3—O5—O2^xii	38.09 (5)
OW2B^iii—Sr1—Si4	81.0 (4)	O9—O5—O2^xii	62.55 (5)
OW2A^ii—Sr1—Si4	92.7 (3)	Si2—O5—O6	35.69 (4)
OW2A^iii—Sr1—Si4	71.1 (4)	Si3—O5—O6	107.15 (7)
O10^i—Sr1—Na1A^iv	42.29 (16)	O9—O5—O6	138.88 (7)
O8—Sr1—Na1A^iv	39.63 (10)	O2^xii—O5—O6	107.11 (7)
O1—Sr1—Na1A^iv	98.6 (4)	Si2—O5—O7	35.80 (4)
O1^i—Sr1—Na1A^iv	91.1 (5)	Si3—O5—O7	159.78 (9)
O10—Sr1—Na1A^iv	166.3 (4)	O9—O5—O7	159.29 (8)
O6—Sr1—Na1A^iv	116.02 (13)	O2^xii—O5—O7	126.50 (8)
OW2B^ii—Sr1—Na1A^iv	121.3 (4)	O6—O5—O7	60.27 (4)
OW2B^iii—Sr1—Na1A^iv	88.5 (6)	Si2—O5—O4^i	34.82 (5)
OW2A^ii—Sr1—Na1A^iv	117.4 (3)	Si3—O5—O4^i	130.33 (8)
OW2A^iii—Sr1—Na1A^iv	94.4 (5)	O9—O5—O4^i	117.67 (7)
Si4—Sr1—Na1A^iv	145.68 (8)	O2^xii—O5—O4^i	162.89 (8)
Na1A^ii—Na1A—O8^v	98.8 (9)	O6—O5—O4^i	60.55 (5)
Na1A^ii—Na1A—OW2B^ii	167.2 (5)	O7—O5—O4^i	60.00 (5)
O8^v—Na1A—OW2B^ii	76.3 (9)	Si2—O5—O8	108.23 (8)
Na1A^ii—Na1A—O10	82.0 (9)	Si3—O5—O8	32.12 (5)
O8^v—Na1A—O10	96.54 (11)	O9—O5—O8	61.79 (6)
OW2B^ii—Na1A—O10	86.7 (7)	O2^xii—O5—O8	60.76 (6)
Na1A^ii—Na1A—O10^ii	80.6 (8)	O6—O5—O8	78.25 (6)
O8^v—Na1A—O10^ii	86.14 (10)	O7—O5—O8	138.41 (7)
OW2B^ii—Na1A—O10^ii	110.6 (10)	O4^i—O5—O8	103.42 (7)
O10—Na1A—O10^ii	162.6 (15)	Si2—O5—OW1	97.71 (7)
Na1A^ii—Na1A—OW2A^ii	168.5 (5)	Si3—O5—OW1	93.02 (7)
O8^v—Na1A—OW2A^ii	89.3 (11)	O9—O5—OW1	59.14 (6)
OW2B^ii—Na1A—OW2A^ii	13.5 (3)	O2^xii—O5—OW1	121.34 (7)
O10—Na1A—OW2A^ii	88.9 (7)	O6—O5—OW1	120.25 (7)
O10^ii—Na1A—OW2A^ii	108.4 (9)	O7—O5—OW1	106.97 (7)
Na1A^ii—Na1A—O8^vi	64.6 (8)	O4^i—O5—OW1	63.60 (6)
O8^v—Na1A—O8^vi	163.4 (15)	O8—O5—OW1	95.81 (7)
OW2B^ii—Na1A—O8^vi	119.9 (9)	Si2—O5—Sr1	71.25 (5)
O10—Na1A—O8^vi	81.7 (4)	Si3—O5—Sr1	68.90 (5)
O10^ii—Na1A—O8^vi	90.8 (5)	O9—O5—Sr1	95.25 (5)
OW2A^ii—Na1A—O8^vi	107.2 (8)	O2^xii—O5—Sr1	88.99 (5)
Na1A^ii—Na1A—OW2B	9.8 (4)	O6—O5—Sr1	43.64 (4)
O8^v—Na1A—OW2B	102.6 (9)	O7—O5—Sr1	103.10 (4)
OW2B^ii—Na1A—OW2B	177.0 (3)	O4^i—O5—Sr1	73.91 (4)
O10—Na1A—OW2B	90.7 (9)	O8—O5—Sr1	36.99 (4)
O10^ii—Na1A—OW2B	72.0 (7)	OW1—O5—Sr1	101.84 (6)
OW2A^ii—Na1A—OW2B	168.1 (3)	Si2—O6—Si4	141.33 (8)
O8^vi—Na1A—OW2B	61.0 (7)	Si2—O6—O10	163.87 (8)
Na1A^ii—Na1A—OW2A	8.9 (4)	Si4—O6—O10	35.69 (4)
O8^v—Na1A—OW2A	92.5 (8)	Si2—O6—O5	35.39 (4)
OW2B^ii—Na1A—OW2A	167.5 (2)	Si4—O6—O5	170.08 (8)
O10—Na1A—OW2A	89.0 (9)	O10—O6—O5	151.52 (7)
O10^ii—Na1A—OW2A	73.6 (7)	Si2—O6—O3^vi	125.17 (7)
OW2A^ii—Na1A—OW2A	177.4 (3)	Si4—O6—O3^vi	36.73 (4)
O8^vi—Na1A—OW2A	70.9 (9)	O10—O6—O3^vi	62.89 (5)
OW2B—Na1A—OW2A	10.4 (2)	O5—O6—O3^vi	133.74 (7)
Na1A^ii—Na1A—Si4^ii	92.0 (7)	Si2—O6—O7	35.89 (5)
O8^v—Na1A—Si4^ii	106.8 (2)	Si4—O6—O7	112.11 (6)
OW2B^ii—Na1A—Si4^ii	100.7 (8)	O10—O6—O7	147.80 (6)
O10—Na1A—Si4^ii	156.6 (4)	O5—O6—O7	60.20 (4)
O10^ii—Na1A—Si4^ii	25.38 (9)	O3^vi—O6—O7	89.29 (6)
OW2A^ii—Na1A—Si4^ii	93.5 (8)	Si2—O6—O9^v	108.67 (7)
O8^vi—Na1A—Si4^ii	75.33 (16)	Si4—O6—O9^v	35.87 (4)
OW2B—Na1A—Si4^ii	82.2 (5)	O10—O6—O9^v	61.59 (5)
OW2A—Na1A—Si4^ii	87.7 (6)	O5—O6—O9^v	143.97 (7)
Na1A^ii—Na1A—O9^vi	93.4 (7)	O3^vi—O6—O9^v	59.43 (5)
O8^v—Na1A—O9^vi	133.7 (4)	O7—O6—O9^v	91.10 (5)
OW2B^ii—Na1A—O9^vi	98.5 (8)	Si2—O6—O4^i	34.91 (4)
O10—Na1A—O9^vi	129.46 (15)	Si4—O6—O4^i	122.62 (7)
O10^ii—Na1A—O9^vi	52.04 (6)	O10—O6—O4^i	129.00 (6)
OW2A^ii—Na1A—O9^vi	86.8 (8)	O5—O6—O4^i	60.47 (5)
O8^vi—Na1A—O9^vi	52.12 (7)	O3^vi—O6—O4^i	134.97 (7)
OW2B—Na1A—O9^vi	84.3 (5)	O7—O6—O4^i	59.95 (5)
OW2A—Na1A—O9^vi	93.2 (7)	O9^v—O6—O4^i	87.13 (6)
Si4^ii—Na1A—O9^vi	27.88 (3)	Si2—O6—Sr1	117.82 (6)
Na1A^ii—Na1A—Si3^v	90.2 (7)	Si4—O6—Sr1	92.69 (5)
O8^v—Na1A—Si3^v	23.44 (9)	O10—O6—Sr1	57.58 (4)
OW2B^ii—Na1A—Si3^v	80.7 (6)	O5—O6—Sr1	96.04 (5)
O10—Na1A—Si3^v	73.73 (9)	O3^vi—O6—Sr1	116.86 (5)
O10^ii—Na1A—Si3^v	106.27 (15)	O7—O6—Sr1	153.57 (6)
OW2A^ii—Na1A—Si3^v	94.1 (8)	O9^v—O6—Sr1	105.14 (5)
O8^vi—Na1A—Si3^v	147.1 (9)	O4^i—O6—Sr1	99.50 (5)
OW2B—Na1A—Si3^v	97.2 (7)	Si2—O6—O1^i	83.70 (6)
OW2A—Na1A—Si3^v	86.9 (7)	Si4—O6—O1^i	102.09 (6)
Si4^ii—Na1A—Si3^v	129.17 (10)	O10—O6—O1^i	82.67 (5)
O9^vi—Na1A—Si3^v	156.8 (2)	O5—O6—O1^i	87.23 (5)
Na1A^ii—Na1B—O10^ii	89.3 (4)	O3^vi—O6—O1^i	138.77 (6)
Na1A^ii—Na1B—O10	90.7 (4)	O7—O6—O1^i	113.60 (6)
O10^ii—Na1B—O10	180.00 (8)	O9^v—O6—O1^i	85.17 (5)
Na1A^ii—Na1B—O8^v	107.5 (4)	O4^i—O6—O1^i	53.65 (4)
O10^ii—Na1B—O8^v	85.04 (5)	Sr1—O6—O1^i	49.13 (3)
O10—Na1B—O8^v	94.96 (5)	Si2—O6—OW2A^iii	124.88 (15)
Na1A^ii—Na1B—O8^vi	72.5 (4)	Si4—O6—OW2A^iii	90.09 (10)
O10^ii—Na1B—O8^vi	94.96 (5)	O10—O6—OW2A^iii	68.0 (2)
O10—Na1B—O8^vi	85.04 (5)	O5—O6—OW2A^iii	90.25 (12)
O8^v—Na1B—O8^vi	180.00 (12)	O3^vi—O6—OW2A^iii	80.7 (3)
Na1A^ii—Na1B—OW2B^ii	168.9 (4)	O7—O6—OW2A^iii	126.2 (4)
O10^ii—Na1B—OW2B^ii	100.5 (3)	O9^v—O6—OW2A^iii	125.56 (11)
O10—Na1B—OW2B^ii	79.5 (3)	O4^i—O6—OW2A^iii	143.5 (2)
O8^v—Na1B—OW2B^ii	68.4 (4)	Sr1—O6—OW2A^iii	59.8 (4)
O8^vi—Na1B—OW2B^ii	111.6 (4)	O1^i—O6—OW2A^iii	108.0 (4)
Na1A^ii—Na1B—OW2B	11.1 (4)	Si2—O6—O8	83.11 (5)
O10^ii—Na1B—OW2B	79.5 (3)	Si4—O6—O8	134.77 (7)
O10—Na1B—OW2B	100.5 (3)	O10—O6—O8	99.61 (5)
O8^v—Na1B—OW2B	111.6 (4)	O5—O6—O8	52.00 (5)
O8^vi—Na1B—OW2B	68.4 (4)	O3^vi—O6—O8	136.29 (6)
OW2B^ii—Na1B—OW2B	180.0 (11)	O7—O6—O8	112.14 (5)
Na1A^ii—Na1B—OW2A	10.1 (4)	O9^v—O6—O8	149.50 (6)
O10^ii—Na1B—OW2A	81.40 (19)	O4^i—O6—O8	87.92 (5)
O10—Na1B—OW2A	98.60 (19)	Sr1—O6—O8	46.31 (3)
O8^v—Na1B—OW2A	100.4 (5)	O1^i—O6—O8	67.85 (5)
O8^vi—Na1B—OW2A	79.6 (5)	OW2A^iii—O6—O8	55.8 (2)
OW2B^ii—Na1B—OW2A	168.2 (2)	Si2^vii—O7—Si2	129.07 (12)
OW2B—Na1B—OW2A	11.8 (2)	Si2^vii—O7—O5^vii	35.06 (4)
Na1A^ii—Na1B—OW2A^ii	169.9 (4)	Si2—O7—O5^vii	122.34 (8)
O10^ii—Na1B—OW2A^ii	98.60 (19)	Si2^vii—O7—O5	122.34 (8)
O10—Na1B—OW2A^ii	81.40 (19)	Si2—O7—O5	35.06 (4)
O8^v—Na1B—OW2A^ii	79.6 (5)	O5^vii—O7—O5	141.49 (10)
O8^vi—Na1B—OW2A^ii	100.4 (5)	Si2^vii—O7—O6^vii	35.44 (3)
OW2B^ii—Na1B—OW2A^ii	11.8 (2)	Si2—O7—O6^vii	154.01 (8)
OW2B—Na1B—OW2A^ii	168.2 (2)	O5^vii—O7—O6^vii	59.53 (4)
OW2A—Na1B—OW2A^ii	180.0 (11)	O5—O7—O6^vii	124.87 (5)
Na1A^ii—Na1B—Si4^ii	98.2 (4)	Si2^vii—O7—O6	154.01 (8)
O10^ii—Na1B—Si4^ii	24.36 (3)	Si2—O7—O6	35.44 (3)
O10—Na1B—Si4^ii	155.64 (3)	O5^vii—O7—O6	124.87 (5)
O8^v—Na1B—Si4^ii	103.77 (4)	O5—O7—O6	59.53 (4)
O8^vi—Na1B—Si4^ii	76.23 (4)	O6^vii—O7—O6	168.77 (9)
OW2B^ii—Na1B—Si4^ii	92.91 (19)	Si2^vii—O7—O4^viii	35.53 (5)
OW2B—Na1B—Si4^ii	87.09 (19)	Si2—O7—O4^viii	96.71 (8)
OW2A—Na1B—Si4^ii	93.2 (3)	O5^vii—O7—O4^viii	60.41 (5)
OW2A^ii—Na1B—Si4^ii	86.8 (3)	O5—O7—O4^viii	87.66 (6)
Na1A^ii—Na1B—Si4	81.8 (4)	O6^vii—O7—O4^viii	60.44 (4)
O10^ii—Na1B—Si4	155.64 (3)	O6—O7—O4^viii	130.69 (7)
O10—Na1B—Si4	24.36 (3)	Si2^vii—O7—O4^i	96.71 (8)
O8^v—Na1B—Si4	76.23 (4)	Si2—O7—O4^i	35.53 (5)
O8^vi—Na1B—Si4	103.77 (4)	O5^vii—O7—O4^i	87.66 (6)
OW2B^ii—Na1B—Si4	87.09 (19)	O5—O7—O4^i	60.41 (5)
OW2B—Na1B—Si4	92.91 (19)	O6^vii—O7—O4^i	130.69 (7)
OW2A—Na1B—Si4	86.8 (3)	O6—O7—O4^i	60.44 (4)
OW2A^ii—Na1B—Si4	93.2 (3)	O4^viii—O7—O4^i	71.73 (7)
Si4^ii—Na1B—Si4	180.000 (18)	Si2^vii—O7—Na2^xv	115.47 (6)
Na1A^ii—Na1B—O9^vi	99.5 (4)	Si2—O7—Na2^xv	115.47 (6)
O10^ii—Na1B—O9^vi	51.42 (4)	O5^vii—O7—Na2^xv	109.26 (5)
O10—Na1B—O9^vi	128.58 (4)	O5—O7—Na2^xv	109.26 (5)
O8^v—Na1B—O9^vi	128.13 (4)	O6^vii—O7—Na2^xv	84.38 (5)
O8^vi—Na1B—O9^vi	51.87 (4)	O6—O7—Na2^xv	84.38 (5)
OW2B^ii—Na1B—O9^vi	90.8 (3)	O4^viii—O7—Na2^xv	144.13 (4)
OW2B—Na1B—O9^vi	89.2 (3)	O4^i—O7—Na2^xv	144.13 (4)
OW2A—Na1B—O9^vi	99.2 (5)	Si3—O8—Na1A^iv	121.0 (3)
OW2A^ii—Na1B—O9^vi	80.8 (5)	Si3—O8—Na1B^i	117.61 (9)
Si4^ii—Na1B—O9^vi	27.57 (2)	Na1A^iv—O8—Na1B^i	8.7 (8)
Si4—Na1B—O9^vi	152.43 (2)	Si3—O8—Sr1	134.98 (10)
OW1—Na2—OW1^vii	173.90 (12)	Na1A^iv—O8—Sr1	97.22 (10)
OW1—Na2—O4^i	83.57 (7)	Na1B^i—O8—Sr1	96.45 (6)
OW1^vii—Na2—O4^i	101.36 (7)	Si3—O8—Na1A^i	114.1 (3)
OW1—Na2—O4^viii	101.36 (7)	Na1A^iv—O8—Na1A^i	16.6 (15)
OW1^vii—Na2—O4^viii	83.57 (7)	Na1B^i—O8—Na1A^i	7.9 (7)
O4^i—Na2—O4^viii	73.82 (7)	Sr1—O8—Na1A^i	95.61 (10)
OW1—Na2—O3^viii	88.64 (8)	Si3—O8—O2^xii	34.49 (5)
OW1^vii—Na2—O3^viii	90.96 (8)	Na1A^iv—O8—O2^xii	126.1 (3)
O4^i—Na2—O3^viii	128.87 (6)	Na1B^i—O8—O2^xii	128.72 (7)
O4^viii—Na2—O3^viii	58.40 (4)	Sr1—O8—O2^xii	134.08 (8)
OW1—Na2—O3^i	90.96 (8)	Na1A^i—O8—O2^xii	130.28 (13)
OW1^vii—Na2—O3^i	88.64 (8)	Si3—O8—O5	33.55 (5)
O4^i—Na2—O3^i	58.40 (4)	Na1A^iv—O8—O5	138.3 (7)
O4^viii—Na2—O3^i	128.87 (6)	Na1B^i—O8—O5	130.73 (8)
O3^viii—Na2—O3^i	172.58 (8)	Sr1—O8—O5	101.91 (6)
OW1—Na2—O7^ix	86.95 (6)	Na1A^i—O8—O5	123.6 (6)
OW1^vii—Na2—O7^ix	86.95 (6)	O2^xii—O8—O5	57.33 (5)
O4^i—Na2—O7^ix	143.09 (3)	Si3—O8—O9	33.68 (5)
O4^viii—Na2—O7^ix	143.09 (3)	Na1A^iv—O8—O9	88.2 (4)
O3^viii—Na2—O7^ix	86.29 (4)	Na1B^i—O8—O9	84.07 (6)
O3^i—Na2—O7^ix	86.29 (4)	Sr1—O8—O9	146.68 (8)
OW1—Na2—Si1^i	87.55 (7)	Na1A^i—O8—O9	80.4 (3)
OW1^vii—Na2—Si1^i	95.03 (7)	O2^xii—O8—O9	59.47 (5)
O4^i—Na2—Si1^i	29.24 (3)	O5—O8—O9	56.47 (5)
O4^viii—Na2—Si1^i	101.34 (5)	Si3—O8—OW2B^i	114.0 (2)
O3^viii—Na2—Si1^i	158.11 (6)	Na1A^iv—O8—OW2B^i	53.1 (8)
O3^i—Na2—Si1^i	29.17 (3)	Na1B^i—O8—OW2B^i	61.6 (2)
O7^ix—Na2—Si1^i	115.00 (2)	Sr1—O8—OW2B^i	107.7 (2)
OW1—Na2—Si1^viii	95.03 (7)	Na1A^i—O8—OW2B^i	69.4 (7)
OW1^vii—Na2—Si1^viii	87.55 (7)	O2^xii—O8—OW2B^i	90.10 (19)
O4^i—Na2—Si1^viii	101.34 (5)	O5—O8—OW2B^i	146.39 (19)
O4^viii—Na2—Si1^viii	29.24 (3)	O9—O8—OW2B^i	101.8 (2)
O3^viii—Na2—Si1^viii	29.17 (3)	Si3—O8—OW2B^iii	110.2 (2)
O3^i—Na2—Si1^viii	158.11 (6)	Na1A^iv—O8—OW2B^iii	117.7 (8)
O7^ix—Na2—Si1^viii	115.00 (2)	Na1B^i—O8—OW2B^iii	125.1 (3)
Si1^i—Na2—Si1^viii	130.00 (4)	Sr1—O8—OW2B^iii	64.1 (2)
OW1—Na2—O6^x	106.17 (7)	Na1A^i—O8—OW2B^iii	131.7 (6)
OW1^vii—Na2—O6^x	69.40 (7)	O2^xii—O8—OW2B^iii	80.84 (18)
O4^i—Na2—O6^x	168.03 (5)	O5—O8—OW2B^iii	104.0 (3)
O4^viii—Na2—O6^x	97.06 (3)	O9—O8—OW2B^iii	140.30 (18)
O3^viii—Na2—O6^x	46.41 (4)	OW2B^i—O8—OW2B^iii	75.8 (6)
O3^i—Na2—O6^x	126.90 (5)	Si3—O8—OW2A^iii	101.3 (4)
O7^ix—Na2—O6^x	46.48 (2)	Na1A^iv—O8—OW2A^iii	128.5 (9)
Si1^i—Na2—O6^x	154.39 (3)	Na1B^i—O8—OW2A^iii	135.9 (5)
Si1^viii—Na2—O6^x	71.35 (2)	Sr1—O8—OW2A^iii	65.66 (19)
OW1—Na2—O6^ix	69.40 (7)	Na1A^i—O8—OW2A^iii	142.2 (7)
OW1^vii—Na2—O6^ix	106.17 (7)	O2^xii—O8—OW2A^iii	74.6 (3)
O4^i—Na2—O6^ix	97.06 (3)	O5—O8—OW2A^iii	93.2 (5)
O4^viii—Na2—O6^ix	168.03 (5)	O9—O8—OW2A^iii	133.4 (4)
O3^viii—Na2—O6^ix	126.90 (5)	OW2B^i—O8—OW2A^iii	84.9 (6)
O3^i—Na2—O6^ix	46.41 (4)	OW2B^iii—O8—OW2A^iii	10.8 (2)
O7^ix—Na2—O6^ix	46.48 (2)	Si3—O8—O10^i	153.40 (10)
Si1^i—Na2—O6^ix	71.35 (2)	Na1A^iv—O8—O10^i	48.42 (15)
Si1^viii—Na2—O6^ix	154.39 (3)	Na1B^i—O8—O10^i	47.47 (4)
O6^x—Na2—O6^ix	92.96 (5)	Sr1—O8—O10^i	49.07 (4)
O1—Si1—O2	114.26 (8)	Na1A^i—O8—O10^i	47.65 (9)
O1—Si1—O3	115.59 (7)	O2^xii—O8—O10^i	170.00 (8)
O2—Si1—O3	104.93 (7)	O5—O8—O10^i	132.66 (7)
O1—Si1—O4	112.92 (7)	O9—O8—O10^i	124.28 (7)
O2—Si1—O4	106.37 (8)	OW2B^i—O8—O10^i	80.08 (19)
O3—Si1—O4	101.52 (7)	OW2B^iii—O8—O10^i	94.75 (19)
O1—Si1—Na2^xi	131.91 (6)	OW2A^iii—O8—O10^i	102.4 (4)
O2—Si1—Na2^xi	113.78 (6)	Si4^iv—O9—Si3	135.84 (9)
O3—Si1—Na2^xi	52.06 (5)	Si4^iv—O9—O5	174.58 (9)
O4—Si1—Na2^xi	49.50 (5)	Si3—O9—O5	38.75 (5)
O1—Si1—Sr1	31.04 (5)	Si4^iv—O9—O3^xiii	36.72 (4)
O2—Si1—Sr1	113.57 (6)	Si3—O9—O3^xiii	170.53 (9)
O3—Si1—Sr1	87.27 (5)	O5—O9—O3^xiii	148.58 (7)
O4—Si1—Sr1	135.23 (5)	Si4^iv—O9—O6^iv	36.68 (4)
Na2^xi—Si1—Sr1	123.52 (2)	Si3—O9—O6^iv	118.30 (7)
O1—Si1—Sr1^vi	28.54 (5)	O5—O9—O6^iv	141.86 (7)
O2—Si1—Sr1^vi	106.83 (6)	O3^xiii—O9—O6^iv	59.84 (5)
O3—Si1—Sr1^vi	141.03 (5)	Si4^iv—O9—O2^xii	116.80 (7)
O4—Si1—Sr1^vi	90.64 (5)	Si3—O9—O2^xii	35.58 (5)
Na2^xi—Si1—Sr1^vi	128.877 (17)	O5—O9—O2^xii	59.11 (5)
Sr1—Si1—Sr1^vi	59.546 (7)	O3^xiii—O9—O2^xii	145.94 (7)
O5—Si2—O6	108.93 (7)	O6^iv—O9—O2^xii	86.61 (5)
O5—Si2—O4^i	110.90 (8)	Si4^iv—O9—O10^iv	32.54 (4)
O6—Si2—O4^i	110.42 (7)	Si3—O9—O10^iv	108.95 (7)
O5—Si2—O7	109.14 (6)	O5—O9—O10^iv	143.15 (7)
O6—Si2—O7	108.67 (7)	O3^xiii—O9—O10^iv	61.83 (5)
O4^i—Si2—O7	108.74 (7)	O6^iv—O9—O10^iv	58.19 (5)
O5—Si2—Sr1	85.36 (6)	O2^xii—O9—O10^iv	107.11 (6)
O6—Si2—Sr1	40.24 (5)	Si4^iv—O9—O8	113.44 (8)
O4^i—Si2—Sr1	90.34 (5)	Si3—O9—O8	32.15 (5)
O7—Si2—Sr1	148.77 (5)	O5—O9—O8	61.74 (6)
O8—Si3—O2^xii	112.48 (9)	O3^xiii—O9—O8	138.87 (7)
O8—Si3—O5	114.33 (8)	O6^iv—O9—O8	117.15 (7)
O2^xii—Si3—O5	103.79 (8)	O2^xii—O9—O8	59.70 (6)
O8—Si3—O9	114.18 (9)	O10^iv—O9—O8	81.65 (6)
O2^xii—Si3—O9	108.72 (8)	Si4^iv—O9—OW1	108.77 (7)
O5—Si3—O9	102.38 (7)	Si3—O9—OW1	108.38 (7)
O8—Si3—Na1A^iv	35.6 (2)	O5—O9—OW1	75.63 (6)
O2^xii—Si3—Na1A^iv	119.6 (5)	O3^xiii—O9—OW1	75.23 (6)
O5—Si3—Na1A^iv	133.7 (4)	O6^iv—O9—OW1	132.82 (7)
O9—Si3—Na1A^iv	79.6 (3)	O2^xii—O9—OW1	134.28 (6)
O8—Si3—Na1B^i	38.27 (7)	O10^iv—O9—OW1	113.34 (7)
O2^xii—Si3—Na1B^i	125.30 (6)	O8—O9—OW1	105.68 (8)
O5—Si3—Na1B^i	129.07 (6)	Si4^iv—O9—Na1A^i	76.04 (7)
O9—Si3—Na1B^i	76.06 (5)	Si3—O9—Na1A^i	79.6 (3)
Na1A^iv—Si3—Na1B^i	6.1 (6)	O5—O9—Na1A^i	100.93 (8)
O8—Si3—Na1A^i	41.5 (3)	O3^xiii—O9—Na1A^i	91.6 (3)
O2^xii—Si3—Na1A^i	130.9 (5)	O6^iv—O9—Na1A^i	102.3 (3)
O5—Si3—Na1A^i	124.3 (4)	O2^xii—O9—Na1A^i	101.9 (5)
O9—Si3—Na1A^i	72.7 (3)	O10^iv—O9—Na1A^i	45.32 (14)
Na1A^iv—Si3—Na1A^i	12.1 (11)	O8—O9—Na1A^i	47.5 (3)
Na1B^i—Si3—Na1A^i	6.0 (5)	OW1—O9—Na1A^i	92.1 (5)
O8—Si3—Sr1	27.75 (6)	Si4^iv—O9—Na1B^i	75.90 (5)
O2^xii—Si3—Sr1	117.38 (6)	Si3—O9—Na1B^i	76.13 (5)
O5—Si3—Sr1	87.09 (5)	O5—O9—Na1B^i	100.60 (5)
O9—Si3—Sr1	129.07 (6)	O3^xiii—O9—Na1B^i	94.81 (5)
Na1A^iv—Si3—Sr1	59.93 (6)	O6^iv—O9—Na1B^i	99.32 (5)
Na1B^i—Si3—Sr1	60.502 (8)	O2^xii—O9—Na1B^i	96.46 (5)
Na1A^i—Si3—Sr1	61.41 (11)	O10^iv—O9—Na1B^i	44.08 (3)
O10—Si4—O9^v	113.78 (7)	O8—O9—Na1B^i	44.06 (4)
O10—Si4—O3^vi	116.03 (7)	OW1—O9—Na1B^i	97.92 (7)
O9^v—Si4—O3^vi	106.69 (7)	Na1A^i—O9—Na1B^i	6.1 (6)
O10—Si4—O6	106.47 (7)	Si4^iv—O9—Na1A^iv	75.91 (7)
O9^v—Si4—O6	107.45 (7)	Si3—O9—Na1A^iv	72.9 (3)
O3^vi—Si4—O6	105.84 (7)	O5—O9—Na1A^iv	100.17 (8)
O10—Si4—Sr1	50.07 (5)	O3^xiii—O9—Na1A^iv	97.8 (3)
O9^v—Si4—Sr1	117.90 (5)	O6^iv—O9—Na1A^iv	96.4 (3)
O3^vi—Si4—Sr1	135.12 (5)	O2^xii—O9—Na1A^iv	91.2 (5)
O6—Si4—Sr1	57.30 (5)	O10^iv—O9—Na1A^iv	43.50 (5)
O10—Si4—Na1A^ii	41.1 (3)	O8—O9—Na1A^iv	41.2 (2)
O9^v—Si4—Na1A^ii	76.08 (7)	OW1—O9—Na1A^iv	103.6 (5)
O3^vi—Si4—Na1A^ii	115.1 (5)	Na1A^i—O9—Na1A^iv	12.1 (11)
O6—Si4—Na1A^ii	136.1 (6)	Na1B^i—O9—Na1A^iv	5.9 (5)
Sr1—Si4—Na1A^ii	81.8 (5)	Si4—O10—Na1B	117.01 (6)
O10—Si4—Na1B	38.63 (4)	Si4—O10—Na1A	120.0 (2)
O9^v—Si4—Na1B	76.53 (5)	Na1B—O10—Na1A	8.7 (8)
O3^vi—Si4—Na1B	121.01 (5)	Si4—O10—Na1A^ii	113.5 (3)
O6—Si4—Na1B	129.95 (5)	Na1B—O10—Na1A^ii	8.7 (8)
Sr1—Si4—Na1B	76.407 (10)	Na1A—O10—Na1A^ii	17.4 (15)
Na1A^ii—Si4—Na1B	6.2 (6)	Si4—O10—Sr1^vi	131.36 (7)
O10—Si4—Na1A	36.91 (13)	Na1B—O10—Sr1^vi	96.67 (4)
O9^v—Si4—Na1A	77.12 (9)	Na1A—O10—Sr1^vi	98.7 (2)
O3^vi—Si4—Na1A	126.7 (5)	Na1A^ii—O10—Sr1^vi	94.5 (2)
O6—Si4—Na1A	124.0 (5)	Si4—O10—O6	37.83 (4)
Sr1—Si4—Na1A	71.2 (5)	Na1B—O10—O6	137.96 (6)
Na1A^ii—Si4—Na1A	12.1 (11)	Na1A—O10—O6	134.5 (4)
Na1B—Si4—Na1A	6.0 (5)	Na1A^ii—O10—O6	140.05 (15)
O10—Si4—Sr1^vi	29.99 (5)	Sr1^vi—O10—O6	125.24 (6)
O9^v—Si4—Sr1^vi	136.36 (6)	Si4—O10—Sr1	102.18 (6)
O3^vi—Si4—Sr1^vi	87.69 (5)	Na1B—O10—Sr1	112.87 (5)
O6—Si4—Sr1^vi	107.64 (5)	Na1A—O10—Sr1	104.2 (8)
Sr1—Si4—Sr1^vi	63.932 (8)	Na1A^ii—O10—Sr1	121.5 (8)
Na1A^ii—Si4—Sr1^vi	60.69 (5)	Sr1^vi—O10—Sr1	94.79 (4)
Na1B—Si4—Sr1^vi	61.158 (8)	O6—O10—Sr1	65.03 (4)
Na1A—Si4—Sr1^vi	61.96 (10)	Si4—O10—O9^v	33.68 (4)
Si1—O1—Sr1	129.95 (8)	Na1B—O10—O9^v	84.50 (5)
Si1—O1—Sr1^vi	134.11 (8)	Na1A—O10—O9^v	86.49 (19)
Sr1—O1—Sr1^vi	95.88 (4)	Na1A^ii—O10—O9^v	82.64 (17)
Si1—O1—O2	33.49 (5)	Sr1^vi—O10—O9^v	152.96 (6)
Sr1—O1—O2	125.35 (7)	O6—O10—O9^v	60.22 (5)
Sr1^vi—O1—O2	121.03 (6)	Sr1—O10—O9^v	109.71 (5)
Si1—O1—O4	34.49 (5)	Si4—O10—O3^vi	32.59 (4)
Sr1—O1—O4	150.83 (7)	Na1B—O10—O3^vi	122.02 (6)
Sr1^vi—O1—O4	105.54 (6)	Na1A—O10—O3^vi	129.4 (6)
O2—O1—O4	58.47 (5)	Na1A^ii—O10—O3^vi	114.5 (7)
Si1—O1—O3	32.93 (4)	Sr1^vi—O10—O3^vi	100.27 (5)
Sr1—O1—O3	99.47 (5)	O6—O10—O3^vi	59.13 (5)
Sr1^vi—O1—O3	160.88 (7)	Sr1—O10—O3^vi	120.27 (5)
O2—O1—O3	57.23 (5)	O9^v—O10—O3^vi	57.83 (5)
O4—O1—O3	56.26 (5)	Si4—O10—O8^vi	144.43 (7)
Si1—O1—OW2B^iii	124.0 (4)	Na1B—O10—O8^vi	47.50 (4)
Sr1—O1—OW2B^iii	67.1 (2)	Na1A—O10—O8^vi	50.7 (3)
Sr1^vi—O1—OW2B^iii	66.6 (4)	Na1A^ii—O10—O8^vi	45.44 (15)
O2—O1—OW2B^iii	90.8 (4)	Sr1^vi—O10—O8^vi	49.26 (4)
O4—O1—OW2B^iii	139.9 (3)	O6—O10—O8^vi	174.49 (6)
O3—O1—OW2B^iii	130.4 (4)	Sr1—O10—O8^vi	113.36 (5)
Si1—O1—O6^vi	77.50 (6)	O9^v—O10—O8^vi	124.60 (6)
Sr1—O1—O6^vi	152.53 (6)	O3^vi—O10—O8^vi	120.11 (6)
Sr1^vi—O1—O6^vi	56.65 (4)	Si4—O10—O1	144.04 (7)
O2—O1—O6^vi	75.60 (5)	Na1B—O10—O1	96.26 (5)
O4—O1—O6^vi	52.56 (4)	Na1A—O10—O1	91.1 (5)
O3—O1—O6^vi	107.49 (6)	Na1A^ii—O10—O1	101.3 (4)
OW2B^iii—O1—O6^vi	98.0 (2)	Sr1^vi—O10—O1	50.01 (3)
Si1—O1—OW2A^iii	132.0 (3)	O6—O10—O1	107.64 (5)
Sr1—O1—OW2A^iii	63.42 (15)	Sr1—O10—O1	48.82 (3)
Sr1^vi—O1—OW2A^iii	61.13 (19)	O9^v—O10—O1	156.93 (6)
O2—O1—OW2A^iii	98.7 (3)	O3^vi—O10—O1	135.85 (6)
O4—O1—OW2A^iii	144.94 (19)	O8^vi—O10—O1	68.85 (5)
O3—O1—OW2A^iii	136.7 (2)	Si4—O10—OW2B^ii	117.9 (3)
OW2B^iii—O1—OW2A^iii	8.1 (2)	Na1B—O10—OW2B^ii	55.0 (2)
O6^vi—O1—OW2A^iii	98.60 (10)	Na1A—O10—OW2B^ii	46.3 (8)
Si1—O1—O10	165.65 (9)	Na1A^ii—O10—OW2B^ii	63.6 (8)
Sr1—O1—O10	51.60 (3)	Sr1^vi—O10—OW2B^ii	110.0 (3)
Sr1^vi—O1—O10	48.40 (3)	O6—O10—OW2B^ii	101.61 (17)
O2—O1—O10	160.73 (7)	Sr1—O10—OW2B^ii	58.9 (3)
O4—O1—O10	135.43 (6)	O9^v—O10—OW2B^ii	92.9 (4)
O3—O1—O10	138.97 (6)	O3^vi—O10—OW2B^ii	149.7 (3)
OW2B^iii—O1—O10	70.4 (4)	O8^vi—O10—OW2B^ii	81.31 (18)
O6^vi—O1—O10	102.40 (5)	O1—O10—OW2B^ii	69.4 (4)
OW2A^iii—O1—O10	62.3 (3)	Na2—OW1—O9	133.03 (9)
Si1—O1—O10^i	82.76 (6)	Na2—OW1—O2^xiii	139.30 (10)
Sr1—O1—O10^i	47.48 (3)	O9—OW1—O2^xiii	87.64 (7)
Sr1^vi—O1—O10^i	143.08 (5)	Na2—OW1—O4^i	50.68 (5)
O2—O1—O10^i	90.25 (5)	O9—OW1—O4^i	88.18 (6)
O4—O1—O10^i	107.75 (5)	O2^xiii—OW1—O4^i	151.56 (11)
O3—O1—O10^i	52.32 (4)	Na2—OW1—OW2A^iv	114.81 (17)
OW2B^iii—O1—O10^i	96.5 (2)	O9—OW1—OW2A^iv	77.82 (11)
O6^vi—O1—O10^i	159.80 (5)	O2^xiii—OW1—OW2A^iv	65.50 (17)
OW2A^iii—O1—O10^i	97.74 (11)	O4^i—OW1—OW2A^iv	86.13 (17)
O10—O1—O10^i	95.67 (5)	Na2—OW1—O5	88.10 (7)
Si1—O1—OW2A^ii	105.2 (4)	O9—OW1—O5	45.22 (4)
Sr1—O1—OW2A^ii	58.9 (4)	O2^xiii—OW1—O5	132.04 (8)
Sr1^vi—O1—OW2A^ii	100.37 (17)	O4^i—OW1—O5	45.87 (4)
O2—O1—OW2A^ii	135.4 (3)	OW2A^iv—OW1—O5	91.53 (13)
O4—O1—OW2A^ii	97.2 (4)	Na2—OW1—O3^xiii	165.52 (12)
O3—O1—OW2A^ii	78.2 (3)	O9—OW1—O3^xiii	46.19 (4)
OW2B^iii—O1—OW2A^ii	122.7 (2)	O2^xiii—OW1—O3^xiii	45.75 (4)
O6^vi—O1—OW2A^ii	121.3 (3)	O4^i—OW1—O3^xiii	134.02 (8)
OW2A^iii—O1—OW2A^ii	116.5 (2)	OW2A^iv—OW1—O3^xiii	79.64 (15)
O10—O1—OW2A^ii	62.3 (3)	O5—OW1—O3^xiii	90.78 (6)
O10^i—O1—OW2A^ii	60.16 (13)	OW2B—OW2A—Na1A^ii	71.6 (13)
Si1—O2—Si3^xii	138.48 (10)	OW2B—OW2A—Na1B	72.3 (13)
Si1—O2—O5^xii	163.28 (9)	Na1A^ii—OW2A—Na1B	1.46 (16)
Si3^xii—O2—O5^xii	38.12 (5)	OW2B—OW2A—Sr1^ii	80 (2)
Si1—O2—O3	37.68 (5)	Na1A^ii—OW2A—Sr1^ii	91.4 (4)
Si3^xii—O2—O3	172.78 (10)	Na1B—OW2A—Sr1^ii	90.2 (3)
O5^xii—O2—O3	148.06 (8)	OW2B—OW2A—Sr1^xvi	72.9 (18)
Si1—O2—O4	37.17 (5)	Na1A^ii—OW2A—Sr1^xvi	143.7 (11)
Si3^xii—O2—O4	122.99 (8)	Na1B—OW2A—Sr1^xvi	144.1 (10)
O5^xii—O2—O4	126.47 (7)	Sr1^ii—OW2A—Sr1^xvi	75.5 (3)
O3—O2—O4	58.53 (5)	OW2B—OW2A—O8^xvi	76.4 (15)
Si1—O2—O9^xii	109.79 (7)	Na1A^ii—OW2A—O8^xvi	128.4 (6)
Si3^xii—O2—O9^xii	35.70 (5)	Na1B—OW2A—O8^xvi	129.9 (5)
O5^xii—O2—O9^xii	58.34 (5)	Sr1^ii—OW2A—O8^xvi	121.8 (5)
O3—O2—O9^xii	144.94 (7)	Sr1^xvi—OW2A—O8^xvi	46.87 (15)
O4—O2—O9^xii	87.29 (6)	OW2B—OW2A—Na1A	72.9 (13)
Si1—O2—O8^xii	125.10 (9)	Na1A^ii—OW2A—Na1A	2.6 (3)
Si3^xii—O2—O8^xii	33.03 (5)	Na1B—OW2A—Na1A	1.14 (10)
O5^xii—O2—O8^xii	61.91 (6)	Sr1^ii—OW2A—Na1A	89.4 (3)
O3—O2—O8^xii	140.43 (8)	Sr1^xvi—OW2A—Na1A	144.3 (9)
O4—O2—O8^xii	137.13 (7)	O8^xvi—OW2A—Na1A	131.0 (5)
O9^xii—O2—O8^xii	60.84 (6)	OW2B—OW2A—O1^xvi	43 (2)
Si1—O2—O1	32.25 (5)	Na1A^ii—OW2A—O1^xvi	100.3 (7)
Si3^xii—O2—O1	111.94 (8)	Na1B—OW2A—O1^xvi	100.2 (7)
O5^xii—O2—O1	149.98 (8)	Sr1^ii—OW2A—O1^xvi	47.5 (3)
O3—O2—O1	61.95 (5)	Sr1^xvi—OW2A—O1^xvi	46.3 (3)
O4—O2—O1	60.81 (5)	O8^xvi—OW2A—O1^xvi	81.2 (5)
O9^xii—O2—O1	96.20 (6)	Na1A—OW2A—O1^xvi	100.1 (6)
O8^xii—O2—O1	92.86 (7)	OW2B—OW2A—O6^xvi	123.9 (18)
Si1—O2—OW1^xiii	112.90 (8)	Na1A^ii—OW2A—O6^xvi	164.4 (10)
Si3^xii—O2—OW1^xiii	108.34 (7)	Na1B—OW2A—O6^xvi	163.6 (9)
O5^xii—O2—OW1^xiii	75.76 (6)	Sr1^ii—OW2A—O6^xvi	90.17 (17)
O3—O2—OW1^xiii	75.24 (6)	Sr1^xvi—OW2A—O6^xvi	51.35 (9)
O4—O2—OW1^xiii	116.75 (8)	O8^xvi—OW2A—O6^xvi	62.49 (13)
O9^xii—O2—OW1^xiii	133.34 (7)	Na1A—OW2A—O6^xvi	162.8 (8)
O8^xii—O2—OW1^xiii	106.10 (8)	O1^xvi—OW2A—O6^xvi	92.2 (2)
O1—O2—OW1^xiii	130.23 (7)	OW2B—OW2A—O10^xvi	102 (2)
Si4^i—O3—Si1	135.08 (9)	Na1A^ii—OW2A—O10^xvi	135.8 (3)
Si4^i—O3—O4	160.15 (9)	Na1B—OW2A—O10^xvi	134.5 (3)
Si1—O3—O4	39.47 (5)	Sr1^ii—OW2A—O10^xvi	45.07 (8)
Si4^i—O3—O2	128.49 (8)	Sr1^xvi—OW2A—O10^xvi	47.22 (9)
Si1—O3—O2	37.39 (5)	O8^xvi—OW2A—O10^xvi	89.31 (15)
O4—O3—O2	61.48 (5)	Na1A—OW2A—O10^xvi	133.5 (3)
Si4^i—O3—O9^xiii	36.58 (4)	O1^xvi—OW2A—O10^xvi	59.0 (2)
Si1—O3—O9^xiii	142.56 (8)	O6^xvi—OW2A—O10^xvi	45.51 (12)
O4—O3—O9^xiii	163.04 (7)	OW2B—OW2A—O8^vi	31.5 (15)
O2—O3—O9^xiii	110.93 (7)	Na1A^ii—OW2A—O8^vi	43.0 (3)
Si4^i—O3—O6^i	37.43 (4)	Na1B—OW2A—O8^vi	44.0 (3)
Si1—O3—O6^i	142.98 (8)	Sr1^ii—OW2A—O8^vi	94.8 (6)
O4—O3—O6^i	129.98 (7)	Sr1^xvi—OW2A—O8^vi	103.6 (7)
O2—O3—O6^i	165.23 (8)	O8^xvi—OW2A—O8^vi	92.1 (5)
O9^xiii—O3—O6^i	60.73 (5)	Na1A—OW2A—O8^vi	44.8 (2)
Si4^i—O3—Na2^xi	121.01 (7)	O1^xvi—OW2A—O8^vi	71.8 (5)
Si1—O3—Na2^xi	98.77 (7)	O6^xvi—OW2A—O8^vi	152.2 (6)
O4—O3—Na2^xi	59.32 (5)	O10^xvi—OW2A—O8^vi	129.9 (7)
O2—O3—Na2^xi	108.30 (6)	OW2B—OW2A—O1^ii	121 (2)
O9^xiii—O3—Na2^xi	113.82 (6)	Na1A^ii—OW2A—O1^ii	86.5 (3)
O6^i—O3—Na2^xi	86.47 (6)	Na1B—OW2A—O1^ii	85.03 (18)
Si4^i—O3—O10^i	31.38 (4)	Sr1^ii—OW2A—O1^ii	45.42 (11)
Si1—O3—O10^i	103.80 (7)	Sr1^xvi—OW2A—O1^ii	105.83 (15)
O4—O3—O10^i	135.22 (7)	O8^xvi—OW2A—O1^ii	145.1 (4)
O2—O3—O10^i	107.58 (6)	Na1A—OW2A—O1^ii	83.90 (19)
O9^xiii—O3—O10^i	60.35 (5)	O1^xvi—OW2A—O1^ii	92.7 (2)
O6^i—O3—O10^i	57.97 (5)	O6^xvi—OW2A—O1^ii	83.6 (4)
Na2^xi—O3—O10^i	142.85 (6)	O10^xvi—OW2A—O1^ii	58.94 (15)
Si4^i—O3—O1	106.30 (7)	O8^vi—OW2A—O1^ii	118.8 (3)
Si1—O3—O1	31.48 (4)	OW2A—OW2B—Na1A^ii	94.9 (14)
O4—O3—O1	61.34 (5)	OW2A—OW2B—Na1B	95.9 (14)
O2—O3—O1	60.81 (5)	Na1A^ii—OW2B—Na1B	1.70 (19)
O9^xiii—O3—O1	130.36 (7)	OW2A—OW2B—O1^xvi	129 (2)
O6^i—O3—O1	113.89 (6)	Na1A^ii—OW2B—O1^xvi	115.9 (5)
Na2^xi—O3—O1	114.96 (6)	Na1B—OW2B—O1^xvi	114.2 (4)
O10^i—O3—O1	75.34 (5)	OW2A—OW2B—O8^vi	142.4 (18)
Si4^i—O3—OW1^xiii	92.54 (7)	Na1A^ii—OW2B—O8^vi	50.6 (4)
Si1—O3—OW1^xiii	96.37 (7)	Na1B—OW2B—O8^vi	50.0 (3)
O4—O3—OW1^xiii	106.66 (6)	O1^xvi—OW2B—O8^vi	85.1 (4)
O2—O3—OW1^xiii	59.01 (6)	OW2A—OW2B—Sr1^ii	88 (2)
O9^xiii—O3—OW1^xiii	58.59 (5)	Na1A^ii—OW2B—Sr1^ii	94.8 (4)
O6^i—O3—OW1^xiii	117.67 (6)	Na1B—OW2B—Sr1^ii	93.5 (3)
Na2^xi—O3—OW1^xiii	105.37 (7)	O1^xvi—OW2B—Sr1^ii	51.51 (18)
O10^i—O3—OW1^xiii	101.04 (7)	O8^vi—OW2B—Sr1^ii	106.8 (4)
O1—O3—OW1^xiii	114.85 (7)	OW2A—OW2B—Sr1^xvi	96.2 (18)
Si4^i—O3—Sr1	68.16 (5)	Na1A^ii—OW2B—Sr1^xvi	166.5 (5)
Si1—O3—Sr1	68.43 (5)	Na1B—OW2B—Sr1^xvi	164.9 (5)
O4—O3—Sr1	98.01 (5)	O1^xvi—OW2B—Sr1^xvi	50.78 (16)
O2—O3—Sr1	86.26 (5)	O8^vi—OW2B—Sr1^xvi	120.3 (6)
O9^xiii—O3—Sr1	96.48 (5)	Sr1^ii—OW2B—Sr1^xvi	77.9 (3)
O6^i—O3—Sr1	82.87 (4)	OW2A—OW2B—O8^xvi	92.9 (14)
Na2^xi—O3—Sr1	137.27 (5)	Na1A^ii—OW2B—O8^xvi	138.3 (7)
O10^i—O3—Sr1	37.50 (3)	Na1B—OW2B—O8^xvi	139.5 (6)
O1—O3—Sr1	38.15 (3)	O1^xvi—OW2B—O8^xvi	89.6 (3)
OW1^xiii—O3—Sr1	116.24 (6)	O8^vi—OW2B—O8^xvi	104.2 (6)
Si2^vi—O4—Si1	129.24 (9)	Sr1^ii—OW2B—O8^xvi	126.3 (4)
Si2^vi—O4—O3	164.23 (8)	Sr1^xvi—OW2B—O8^xvi	48.55 (16)
Si1—O4—O3	39.01 (4)	OW2A—OW2B—Na1A	96.7 (14)
Si2^vi—O4—Na2^xi	128.05 (7)	Na1A^ii—OW2B—Na1A	3.0 (3)
Si1—O4—Na2^xi	101.26 (6)	Na1B—OW2B—Na1A	1.30 (12)
O3—O4—Na2^xi	62.28 (5)	O1^xvi—OW2B—Na1A	112.9 (4)
Si2^vi—O4—O2	118.22 (7)	O8^vi—OW2B—Na1A	49.6 (3)
Si1—O4—O2	36.46 (5)	Sr1^ii—OW2B—Na1A	92.5 (3)
O3—O4—O2	59.99 (5)	Sr1^xvi—OW2B—Na1A	163.6 (4)
Na2^xi—O4—O2	109.44 (5)	O8^xvi—OW2B—Na1A	140.3 (6)
Si2^vi—O4—O7^xi	35.73 (4)	OW2A—OW2B—O10^ii	100.0 (17)
Si1—O4—O7^xi	145.13 (8)	Na1A^ii—OW2B—O10^ii	47.0 (3)
O3—O4—O7^xi	159.62 (7)	Na1B—OW2B—O10^ii	45.49 (16)
Na2^xi—O4—O7^xi	107.23 (5)	O1^xvi—OW2B—O10^ii	77.6 (2)
O2—O4—O7^xi	112.86 (6)	O8^vi—OW2B—O10^ii	69.0 (3)
Si2^vi—O4—O5^vi	34.29 (4)	Sr1^ii—OW2B—O10^ii	48.75 (17)
Si1—O4—O5^vi	130.69 (8)	Sr1^xvi—OW2B—O10^ii	123.1 (3)
O3—O4—O5^vi	138.03 (7)	O8^xvi—OW2B—O10^ii	165.8 (5)
Na2^xi—O4—O5^vi	105.28 (6)	Na1A—OW2B—O10^ii	44.36 (18)

Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2; (ii) −x+1/2, −y+1/2, −z; (iii) x, −y+1, z+1/2; (iv) x, −y, z+1/2; (v) x, −y, z−1/2; (vi) −x+1/2, y+1/2, −z+1/2; (vii) −x, y, −z+1/2; (viii) x−1/2, y−1/2, z; (ix) x, y−1, z; (x) −x, y−1, −z+1/2; (xi) x+1/2, y+1/2, z; (xii) −x+1/2, −y+1/2, −z+1; (xiii) −x+1/2, −y−1/2, −z+1; (xiv) −x+1, y, −z+1/2; (xv) x, y+1, z; (xvi) x, −y+1, z−1/2.

TetraSodium BisStrontium OctaSilicate TetraHydrate (TR010)

Crystal data

Na4SrSi8O19·4(H2O)	F(000) = 1512
Mr = 780.36	Dx = 2.474 Mg m^−3
Monoclinic, P2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P -2yc	Cell parameters from 9594 reflections
a = 22.4102 (3) Å	θ = 3.0–32.7°
b = 7.0292 (1) Å	µ = 3.23 mm^−1
c = 13.3140 (2) Å	T = 293 K
β = 92.538 (1)°	Prismatic, colourless
V = 2095.24 (5) Å^3	0.23 × 0.14 × 0.04 mm
Z = 4

Data collection

Oxford 'X Calibur Gemini Ultra diffractometer	7245 independent reflections
Radiation source: fine-focus sealed tube	5007 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.034
Detector resolution: 10.2890 pixels mm^-1	θmax = 32.7°, θmin = 3.0°
phi/ω scans	h = −33→32
Absorption correction: multi-scan CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29-11-2007 CrysAlis171 .NET) (compiled Nov 29 2007,17:23:28) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm.	k = −10→10
Tmin = 0.448, Tmax = 1.000	l = −20→14
27441 measured reflections

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.033	H-atom parameters not defined
wR(F^2) = 0.065	w = 1/[σ^2(Fo^2) + (0.010P)^2] where P = (Fo^2 + 2Fc^2)/3
S = 1.62	(Δ/σ)max = 0.001
7245 reflections	Δρmax = 0.83 e Å^−3
327 parameters	Δρmin = −0.93 e Å^−3
0 restraints

Special details

Experimental. CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.13 (release 29–11-2007 CrysAlis171. NET) (compiled Nov 29 2007,17:23:28) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm.

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
Sr1	0.0000	0.02754 (5)	0.2500	0.01172 (9)
Sr2	0.5000	0.00893 (4)	0.2500	0.01063 (9)
Na1	0.00496 (5)	0.76608 (18)	0.47772 (8)	0.0251 (3)
Na2	0.0000	0.5291 (2)	0.2500	0.0259 (5)
Na3	0.49055 (5)	0.24008 (19)	0.00146 (7)	0.0287 (3)
Na4	0.5000	0.51130 (17)	0.2500	0.0162 (4)
Na5	0.25125 (5)	0.26751 (14)	0.49402 (8)	0.0265 (3)
Si1	0.18312 (4)	0.01233 (8)	0.28265 (5)	0.00700 (16)
Si2	0.37147 (4)	−0.00519 (8)	0.02473 (5)	0.00738 (16)
Si3	0.38539 (3)	−0.28424 (9)	−0.14957 (5)	0.00710 (14)
Si4	0.11008 (3)	0.28539 (9)	0.14217 (5)	0.00703 (14)
Si5	0.37755 (3)	0.28178 (9)	−0.14341 (5)	0.00800 (14)
Si6	0.12330 (3)	−0.28393 (9)	0.15658 (5)	0.00757 (14)
Si7	0.31312 (4)	0.01339 (8)	0.21879 (5)	0.00701 (16)
Si8	0.12836 (4)	0.01182 (8)	0.47964 (5)	0.00784 (16)
O1	0.13332 (8)	0.1576 (2)	0.23846 (12)	0.0128 (4)
O2	0.24693 (8)	0.0787 (2)	0.24506 (13)	0.0142 (3)
O3	0.16788 (8)	−0.2024 (2)	0.24823 (12)	0.0143 (4)
O4	0.18471 (9)	0.0184 (2)	0.40380 (13)	0.0097 (4)
O5	0.43424 (9)	−0.0360 (2)	0.08009 (13)	0.0154 (4)
O6	0.36439 (8)	0.2022 (2)	−0.03000 (12)	0.0142 (4)
O7	0.35336 (7)	−0.1680 (2)	−0.05897 (11)	0.0104 (4)
O8	0.31448 (9)	−0.0215 (2)	0.09876 (13)	0.0102 (4)
O9	0.45563 (7)	−0.2713 (2)	−0.14818 (12)	0.0113 (4)
O10	0.35727 (9)	0.50340 (19)	−0.14519 (14)	0.0114 (4)
O11	0.35819 (8)	0.1856 (2)	0.24648 (12)	0.0130 (4)
O12	0.03971 (8)	0.2884 (2)	0.14271 (12)	0.0112 (4)
O13	0.14143 (9)	0.49257 (19)	0.15163 (14)	0.0120 (4)
O14	0.13704 (8)	0.1876 (2)	0.04208 (12)	0.0139 (4)
O15	0.44475 (8)	0.2448 (2)	−0.16721 (12)	0.0150 (4)
O16	0.32975 (8)	−0.1789 (2)	0.27831 (12)	0.0163 (4)
O17	0.05532 (7)	−0.2379 (2)	0.17074 (12)	0.0120 (4)
O18	0.14839 (8)	−0.1858 (2)	0.05515 (12)	0.0135 (4)
O19	0.06478 (8)	0.0309 (2)	0.42553 (13)	0.0153 (4)
OW1	0.06834 (13)	0.4818 (3)	0.40521 (18)	0.0437 (7)
OW2	0.43056 (10)	0.5481 (3)	0.09837 (16)	0.0363 (6)
OW3	0.20059 (13)	0.5272 (3)	0.4135 (2)	0.0520 (8)
OW4	0.29162 (18)	0.5038 (3)	0.1051 (3)	0.0912 (13)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sr1	0.0155 (2)	0.00850 (16)	0.0115 (2)	0.000	0.00482 (16)	0.000
Sr2	0.0132 (2)	0.00831 (16)	0.01056 (19)	0.000	0.00319 (15)	0.000
Na1	0.0208 (6)	0.0363 (7)	0.0177 (6)	−0.0045 (5)	−0.0058 (5)	0.0031 (5)
Na2	0.0251 (11)	0.0131 (7)	0.0408 (12)	0.000	0.0169 (9)	0.000
Na3	0.0253 (7)	0.0388 (7)	0.0211 (6)	−0.0058 (6)	−0.0099 (5)	0.0030 (5)
Na4	0.0169 (10)	0.0134 (7)	0.0187 (9)	0.000	0.0058 (7)	0.000
Na5	0.0195 (6)	0.0261 (6)	0.0337 (6)	0.0014 (5)	−0.0029 (5)	−0.0013 (5)
Si1	0.0079 (4)	0.0076 (3)	0.0056 (4)	0.0007 (3)	0.0006 (3)	−0.0001 (2)
Si2	0.0084 (4)	0.0084 (3)	0.0054 (4)	−0.0004 (3)	0.0011 (3)	−0.0002 (2)
Si3	0.0090 (4)	0.0059 (3)	0.0064 (3)	0.0004 (3)	0.0006 (3)	−0.0002 (3)
Si4	0.0084 (4)	0.0058 (3)	0.0069 (3)	0.0004 (3)	0.0000 (3)	0.0003 (3)
Si5	0.0109 (4)	0.0059 (3)	0.0072 (3)	0.0002 (3)	0.0002 (3)	−0.0003 (3)
Si6	0.0092 (4)	0.0059 (3)	0.0076 (3)	−0.0006 (3)	0.0005 (3)	−0.0001 (3)
Si7	0.0084 (4)	0.0075 (3)	0.0052 (4)	−0.0005 (3)	0.0004 (3)	−0.0001 (2)
Si8	0.0088 (4)	0.0091 (3)	0.0058 (4)	−0.0001 (3)	0.0010 (3)	0.0002 (2)
O1	0.0122 (9)	0.0153 (8)	0.0108 (9)	0.0038 (7)	−0.0001 (7)	0.0036 (7)
O2	0.0112 (8)	0.0161 (8)	0.0158 (9)	0.0022 (9)	0.0054 (7)	0.0023 (8)
O3	0.0184 (10)	0.0108 (8)	0.0131 (9)	0.0014 (8)	−0.0060 (7)	−0.0022 (7)
O4	0.0102 (11)	0.0136 (8)	0.0052 (9)	−0.0004 (7)	−0.0003 (7)	0.0002 (6)
O5	0.0110 (11)	0.0227 (9)	0.0123 (10)	0.0015 (8)	−0.0028 (8)	−0.0019 (7)
O6	0.0246 (11)	0.0089 (8)	0.0093 (9)	−0.0005 (8)	0.0043 (8)	0.0015 (7)
O7	0.0093 (9)	0.0119 (8)	0.0103 (9)	−0.0006 (7)	0.0028 (7)	−0.0037 (7)
O8	0.0112 (11)	0.0140 (8)	0.0056 (9)	−0.0031 (7)	0.0024 (8)	−0.0019 (6)
O9	0.0084 (9)	0.0130 (8)	0.0126 (9)	−0.0007 (7)	0.0011 (7)	−0.0006 (7)
O10	0.0108 (11)	0.0047 (8)	0.0187 (11)	−0.0006 (6)	0.0009 (8)	−0.0008 (6)
O11	0.0161 (10)	0.0149 (8)	0.0080 (8)	−0.0061 (8)	0.0012 (7)	−0.0017 (7)
O12	0.0093 (9)	0.0127 (8)	0.0116 (9)	−0.0003 (7)	0.0006 (7)	0.0009 (7)
O13	0.0134 (12)	0.0055 (8)	0.0170 (10)	0.0000 (7)	−0.0011 (8)	−0.0005 (6)
O14	0.0193 (10)	0.0115 (8)	0.0112 (9)	−0.0006 (8)	0.0051 (7)	−0.0037 (7)
O15	0.0141 (10)	0.0136 (9)	0.0174 (9)	0.0030 (8)	0.0032 (8)	−0.0020 (7)
O16	0.0218 (11)	0.0125 (8)	0.0140 (9)	−0.0007 (8)	−0.0052 (8)	0.0030 (7)
O17	0.0097 (9)	0.0129 (8)	0.0137 (9)	−0.0001 (7)	0.0028 (7)	0.0010 (7)
O18	0.0161 (10)	0.0135 (8)	0.0112 (9)	0.0020 (7)	0.0042 (7)	0.0047 (7)
O19	0.0081 (10)	0.0256 (10)	0.0121 (10)	0.0026 (8)	−0.0009 (8)	0.0015 (7)
OW1	0.0469 (19)	0.0475 (15)	0.0359 (15)	−0.0135 (11)	−0.0092 (12)	−0.0018 (10)
OW2	0.0307 (15)	0.0438 (12)	0.0334 (13)	0.0082 (11)	−0.0079 (11)	0.0022 (11)
OW3	0.056 (2)	0.0430 (14)	0.0572 (18)	0.0081 (12)	−0.0010 (15)	0.0193 (12)
OW4	0.096 (3)	0.066 (2)	0.106 (3)	−0.0153 (16)	−0.048 (2)	0.0523 (17)

Geometric parameters (Å, º)

Sr1—O17	2.4997 (16)	O3—O18	2.591 (2)
Sr1—O17^i	2.4997 (16)	O3—O4	2.602 (2)
Sr1—O12^i	2.5114 (15)	O3—O17	2.694 (2)
Sr1—O12	2.5114 (16)	O3—OW3^ii	2.975 (3)
Sr1—O19^i	2.6962 (19)	O4—O18^iii	2.501 (2)
Sr1—O19	2.6962 (19)	O4—O14^iii	2.608 (2)
Sr1—O1	3.1347 (17)	O4—O19	2.717 (3)
Sr1—O1^i	3.1347 (17)	O4—OW3^ii	3.473 (3)
Sr1—Si4	3.4272 (7)	O5—Na3^iv	2.498 (2)
Sr1—Si4^i	3.4272 (7)	O5—O6	2.683 (2)
Sr1—Na2^ii	3.5038 (14)	O5—O7	2.698 (3)
Sr1—Na2	3.5254 (14)	O5—O8	2.708 (3)
Sr2—O15^iii	2.4594 (16)	O5—OW2^ii	2.935 (3)
Sr2—O15^iv	2.4594 (16)	O5—O11	3.252 (2)
Sr2—O9^iii	2.5196 (16)	O5—O15^iv	3.252 (3)
Sr2—O9^iv	2.5196 (16)	O5—O9^iv	3.374 (2)
Sr2—O5^v	2.6634 (19)	O6—O8	2.614 (2)
Sr2—O5	2.6634 (19)	O6—O10	2.615 (2)
Sr2—O11^v	3.4104 (17)	O6—O15	2.638 (2)
Sr2—O11	3.4104 (17)	O6—O16^xii	2.640 (2)
Sr2—Na4^ii	3.4980 (12)	O6—O7	2.641 (2)
Sr2—Si3^iv	3.5261 (7)	O6—OW4	3.263 (4)
Sr2—Si3^iii	3.5261 (7)	O6—OW2	3.287 (3)
Sr2—Na4	3.5312 (12)	O7—Na5^xii	2.523 (2)
Na1—O12^vi	2.329 (2)	O7—O8	2.528 (2)
Na1—O17^vii	2.344 (2)	O7—O10^ii	2.583 (2)
Na1—O19^viii	2.414 (2)	O7—O11^xii	2.600 (2)
Na1—O19^ix	2.513 (2)	O7—O9	2.726 (2)
Na1—OW1	2.658 (3)	O7—O16^xii	3.289 (2)
Na1—OW1^ix	2.897 (3)	O7—OW2^ii	3.323 (3)
Na1—O14^vi	3.062 (2)	O7—Na3^iv	3.584 (2)
Na1—Si4^vi	3.1651 (13)	O8—Na5^xii	2.601 (2)
Na1—Si8^viii	3.2597 (13)	O8—O11	2.603 (2)
Na1—Si6^vii	3.3358 (13)	O8—O16	2.642 (2)
Na1—Na1^x	3.351 (2)	O8—OW4^ii	3.377 (3)
Na1—Si8^ix	3.4403 (14)	O9—Na3^iv	2.2606 (19)
Na2—O17^viii	2.3342 (18)	O9—Na4^iv	2.4065 (18)
Na2—O17^vii	2.3342 (18)	O9—Sr2^iv	2.5196 (16)
Na2—O12	2.4099 (18)	O9—O11^xii	2.613 (2)
Na2—O12^i	2.4099 (18)	O9—O10^ii	2.716 (2)
Na2—OW1	2.539 (3)	O9—OW2^iv	3.253 (3)
Na2—OW1^i	2.539 (3)	O9—O5^iv	3.374 (3)
Na2—Si6^vii	3.3488 (9)	O9—O15^ii	3.419 (3)
Na2—Si6^viii	3.3488 (9)	O9—O9^xv	3.433 (3)
Na2—Si4	3.3756 (9)	O10—Si3^viii	1.6223 (15)
Na2—Si4^i	3.3756 (9)	O10—O16^xii	2.562 (2)
Na2—Na1^i	3.4569 (13)	O10—O7^viii	2.583 (2)
Na3—O9^iv	2.2606 (19)	O10—O11^xiii	2.620 (2)
Na3—O15	2.428 (2)	O10—O15	2.699 (2)
Na3—O5^iv	2.498 (2)	O10—O9^viii	2.716 (2)
Na3—O5	2.563 (2)	O10—Na5^xiii	3.473 (2)
Na3—OW2^xi	2.705 (3)	O10—Na4^xi	3.5474 (18)
Na3—O6	2.852 (2)	O11—Si3^iii	1.6410 (17)
Na3—OW2	2.883 (2)	O11—O7^iii	2.600 (2)
Na3—Si5	3.1283 (13)	O11—O9^iii	2.613 (2)
Na3—Si2	3.2035 (14)	O11—O10^vi	2.620 (2)
Na3—Si3^iv	3.3509 (13)	O11—O16	2.678 (2)
Na3—Na3^iv	3.402 (3)	O11—OW4	3.244 (3)
Na3—O7^iv	3.584 (2)	O12—Na1^xiii	2.329 (2)
Na4—O9^iii	2.4065 (18)	O12—O13	2.692 (2)
Na4—O9^iv	2.4065 (18)	O12—O14	2.704 (2)
Na4—O15^xi	2.4103 (19)	O12—OW1^i	2.825 (3)
Na4—O15^vi	2.4103 (19)	O12—O19^i	3.065 (2)
Na4—OW2^v	2.507 (2)	O12—O17^viii	3.367 (2)
Na4—OW2	2.507 (2)	O12—O12^i	3.432 (3)
Na4—Si3^iv	3.3520 (9)	O12—Na1^i	3.835 (2)
Na4—Si3^iii	3.3520 (9)	O13—Si6^viii	1.6248 (15)
Na4—Si5^vi	3.4648 (8)	O13—O3^viii	2.556 (2)
Na4—Si5^xi	3.4648 (8)	O13—O14	2.592 (2)
Na4—Sr2^viii	3.4980 (12)	O13—O18^viii	2.608 (2)
Na5—OW4^vi	2.339 (3)	O13—O17^viii	2.724 (2)
Na5—OW3	2.379 (3)	O13—OW4	3.450 (5)
Na5—O7^iii	2.523 (2)	O13—OW3^xiii	3.493 (3)
Na5—O18^iii	2.544 (2)	O13—Na5^xiii	3.710 (2)
Na5—O4	2.564 (2)	O14—Si8^xii	1.6368 (17)
Na5—O8^iii	2.601 (2)	O14—O4^xii	2.608 (2)
Na5—Si2^iii	3.2754 (13)	O14—O18	2.642 (2)
Na5—Si8	3.2871 (13)	O14—O19^xii	2.677 (3)
Na5—O10^vi	3.473 (2)	O14—OW3^xiii	3.032 (3)
Na5—O2	3.568 (2)	O14—Na1^xiii	3.062 (2)
Na5—O13^vi	3.710 (2)	O14—OW1^xiii	3.293 (3)
Si1—O1	1.6050 (18)	O15—Na4^xi	2.4103 (19)
Si1—O2	1.6052 (19)	O15—Sr2^iv	2.4594 (16)
Si1—O3	1.6098 (17)	O15—O16^xii	2.686 (3)
Si1—O4	1.6124 (18)	O15—OW2^xi	3.247 (3)
Si2—O5	1.574 (2)	O15—O5^iv	3.252 (3)
Si2—O6	1.6346 (16)	O15—O15^xv	3.388 (3)
Si2—O7	1.6359 (17)	O15—O9^viii	3.419 (3)
Si2—O8	1.6515 (18)	O15—OW2^xiii	3.446 (3)
Si2—Na5^xii	3.2754 (13)	O16—Si5^iii	1.6303 (19)
Si3—O9	1.5758 (18)	O16—O10^iii	2.562 (2)
Si3—O10^ii	1.6223 (15)	O16—O6^iii	2.640 (2)
Si3—O11^xii	1.6410 (17)	O16—O15^iii	2.686 (3)
Si3—O7	1.6477 (16)	O16—O7^iii	3.289 (2)
Si3—Na3^iv	3.3509 (13)	O16—OW4^ii	3.294 (4)
Si3—Na4^iv	3.3520 (9)	O17—Na2^ii	2.3342 (18)
Si3—Sr2^iv	3.5261 (7)	O17—Na1^xiv	2.344 (2)
Si4—O12	1.5775 (18)	O17—O18	2.672 (2)
Si4—O13	1.6193 (16)	O17—O13^ii	2.724 (2)
Si4—O1	1.6318 (17)	O17—O17^i	3.326 (3)
Si4—O14	1.6385 (16)	O17—O12^ii	3.367 (2)
Si4—Na1^xiii	3.1651 (13)	O17—O19^i	3.486 (3)
Si5—O15	1.5743 (18)	O18—Si8^xii	1.6334 (17)
Si5—O10	1.6226 (15)	O18—O4^xii	2.501 (2)
Si5—O16^xii	1.6303 (19)	O18—Na5^xii	2.544 (2)
Si5—O6	1.6488 (16)	O18—O13^ii	2.608 (2)
Si5—Na4^xi	3.4648 (8)	O18—O19^xii	2.718 (3)
Si5—Sr2^iv	3.7503 (7)	O18—OW3^xii	3.298 (3)
Si6—O17	1.5770 (17)	O18—OW1^xii	3.349 (3)
Si6—O13^ii	1.6248 (15)	O19—Na1^ii	2.414 (2)
Si6—O18	1.6379 (16)	O19—Na1^ix	2.513 (2)
Si6—O3	1.6453 (18)	O19—O14^iii	2.677 (3)
Si6—Na1^xiv	3.3358 (13)	O19—O18^iii	2.718 (3)
Si6—Na2^ii	3.3488 (9)	O19—O12^i	3.065 (2)
Si7—O16	1.6023 (17)	O19—OW1	3.183 (3)
Si7—O2	1.6059 (19)	O19—O17^i	3.486 (3)
Si7—O11	1.6089 (18)	OW1—O12^i	2.825 (3)
Si7—O8	1.6184 (18)	OW1—Na1^ix	2.897 (3)
Si8—O19	1.574 (2)	OW1—OW3	2.978 (4)
Si8—O18^iii	1.6334 (17)	OW1—O14^vi	3.293 (3)
Si8—O14^iii	1.6368 (17)	OW1—O18^iii	3.349 (3)
Si8—O4	1.6521 (19)	OW2—Na3^xi	2.705 (3)
Si8—Na1^ii	3.2597 (13)	OW2—O5^viii	2.935 (3)
Si8—Na1^ix	3.4403 (14)	OW2—OW4	3.135 (5)
O1—O12	2.576 (2)	OW2—O15^xi	3.247 (3)
O1—O2	2.603 (3)	OW2—O9^iv	3.253 (3)
O1—O4	2.628 (2)	OW2—O7^viii	3.323 (3)
O1—O14	2.628 (2)	OW2—O15^vi	3.446 (3)
O1—O13	2.633 (2)	OW2—Sr2^viii	4.088 (2)
O1—O3	2.648 (2)	OW3—O3^viii	2.975 (3)
O1—O19	3.114 (2)	OW3—O14^vi	3.032 (3)
O1—O17	3.385 (2)	OW3—OW4^vi	3.203 (4)
O1—O18	3.460 (2)	OW3—O18^iii	3.298 (3)
O2—O11	2.603 (3)	OW3—O4^viii	3.473 (3)
O2—O8	2.616 (2)	OW3—O13^vi	3.493 (3)
O2—O16	2.617 (2)	OW4—Na5^xiii	2.339 (3)
O2—O4	2.618 (2)	OW4—OW3^xiii	3.203 (4)
O2—O3	2.656 (2)	OW4—O16^viii	3.294 (4)
O3—O13^ii	2.556 (2)	OW4—O8^viii	3.377 (3)
O17—Sr1—O17^i	83.42 (7)	Si2—O7—O10^ii	156.37 (11)
O17—Sr1—O12^i	168.53 (5)	Si3—O7—O10^ii	37.49 (5)
O17^i—Sr1—O12^i	96.32 (5)	Na5^xii—O7—O10^ii	85.72 (7)
O17—Sr1—O12	96.32 (5)	O8—O7—O10^ii	138.87 (8)
O17^i—Sr1—O12	168.53 (5)	Si2—O7—O11^xii	133.78 (9)
O12^i—Sr1—O12	86.21 (7)	Si3—O7—O11^xii	37.67 (5)
O17—Sr1—O19^i	84.18 (5)	Na5^xii—O7—O11^xii	110.10 (8)
O17^i—Sr1—O19^i	96.57 (5)	O8—O7—O11^xii	151.40 (9)
O12^i—Sr1—O19^i	107.22 (5)	O10^ii—O7—O11^xii	60.72 (6)
O12—Sr1—O19^i	72.03 (5)	Si2—O7—O6	36.13 (5)
O17—Sr1—O19	96.57 (5)	Si3—O7—O6	123.69 (8)
O17^i—Sr1—O19	84.18 (5)	Na5^xii—O7—O6	108.21 (7)
O12^i—Sr1—O19	72.03 (5)	O8—O7—O6	60.72 (6)
O12—Sr1—O19	107.22 (5)	O10^ii—O7—O6	160.30 (8)
O19^i—Sr1—O19	179.01 (7)	O11^xii—O7—O6	100.64 (7)
O17—Sr1—O1	72.87 (5)	Si2—O7—O5	32.11 (6)
O17^i—Sr1—O1	136.88 (5)	Si3—O7—O5	111.82 (9)
O12^i—Sr1—O1	100.23 (5)	Na5^xii—O7—O5	119.57 (7)
O12—Sr1—O1	52.89 (5)	O8—O7—O5	62.33 (7)
O19^i—Sr1—O1	115.64 (5)	O10^ii—O7—O5	125.29 (9)
O19—Sr1—O1	64.03 (5)	O11^xii—O7—O5	130.07 (8)
O17—Sr1—O1^i	136.88 (5)	O6—O7—O5	60.34 (6)
O17^i—Sr1—O1^i	72.87 (5)	Si2—O7—O9	107.17 (9)
O12^i—Sr1—O1^i	52.89 (5)	Si3—O7—O9	31.45 (5)
O12—Sr1—O1^i	100.23 (5)	Na5^xii—O7—O9	146.96 (8)
O19^i—Sr1—O1^i	64.03 (5)	O8—O7—O9	142.91 (9)
O19—Sr1—O1^i	115.64 (5)	O10^ii—O7—O9	61.46 (6)
O1—Sr1—O1^i	146.09 (6)	O11^xii—O7—O9	58.70 (6)
O17—Sr1—Si4	80.70 (4)	O6—O7—O9	104.55 (7)
O17^i—Sr1—Si4	162.04 (4)	O5—O7—O9	80.70 (7)
O12^i—Sr1—Si4	97.58 (4)	Si2—O7—O16^xii	87.59 (7)
O12—Sr1—Si4	25.29 (4)	Si3—O7—O16^xii	87.02 (7)
O19^i—Sr1—Si4	90.13 (4)	Na5^xii—O7—O16^xii	105.57 (7)
O19—Sr1—Si4	89.34 (4)	O8—O7—O16^xii	101.19 (7)
O1—Sr1—Si4	28.35 (3)	O10^ii—O7—O16^xii	112.20 (7)
O1^i—Sr1—Si4	124.87 (3)	O11^xii—O7—O16^xii	52.53 (5)
O17—Sr1—Si4^i	162.04 (4)	O6—O7—O16^xii	51.46 (5)
O17^i—Sr1—Si4^i	80.70 (4)	O5—O7—O16^xii	106.30 (7)
O12^i—Sr1—Si4^i	25.29 (4)	O9—O7—O16^xii	91.40 (6)
O12—Sr1—Si4^i	97.58 (4)	Si2—O7—OW2^ii	83.34 (8)
O19^i—Sr1—Si4^i	89.34 (4)	Si3—O7—OW2^ii	86.11 (8)
O19—Sr1—Si4^i	90.13 (4)	Na5^xii—O7—OW2^ii	96.34 (6)
O1—Sr1—Si4^i	124.87 (3)	O8—O7—OW2^ii	84.82 (7)
O1^i—Sr1—Si4^i	28.35 (3)	O10^ii—O7—OW2^ii	73.51 (7)
Si4—Sr1—Si4^i	116.14 (2)	O11^xii—O7—OW2^ii	123.77 (7)
O17—Sr1—Na2^ii	41.71 (4)	O6—O7—OW2^ii	117.19 (8)
O17^i—Sr1—Na2^ii	41.71 (4)	O5—O7—OW2^ii	57.22 (6)
O12^i—Sr1—Na2^ii	136.89 (4)	O9—O7—OW2^ii	71.96 (6)
O12—Sr1—Na2^ii	136.89 (4)	O16^xii—O7—OW2^ii	157.59 (8)
O19^i—Sr1—Na2^ii	90.50 (4)	Si2—O7—Na3^iv	75.10 (7)
O19—Sr1—Na2^ii	90.50 (4)	Si3—O7—Na3^iv	68.50 (6)
O1—Sr1—Na2^ii	106.95 (3)	Na5^xii—O7—Na3^iv	142.17 (7)
O1^i—Sr1—Na2^ii	106.95 (3)	O8—O7—Na3^iv	104.43 (7)
Si4—Sr1—Na2^ii	121.928 (12)	O10^ii—O7—Na3^iv	85.21 (6)
Si4^i—Sr1—Na2^ii	121.928 (12)	O11^xii—O7—Na3^iv	97.05 (6)
O17—Sr1—Na2	138.29 (4)	O6—O7—Na3^iv	91.37 (6)
O17^i—Sr1—Na2	138.29 (4)	O5—O7—Na3^iv	44.12 (5)
O12^i—Sr1—Na2	43.11 (4)	O9—O7—Na3^iv	39.10 (5)
O12—Sr1—Na2	43.11 (4)	O16^xii—O7—Na3^iv	111.87 (6)
O19^i—Sr1—Na2	89.50 (4)	OW2^ii—O7—Na3^iv	45.92 (5)
O19—Sr1—Na2	89.50 (4)	Si7—O8—Si2	128.88 (13)
O1—Sr1—Na2	73.05 (3)	Si7—O8—O7	154.73 (11)
O1^i—Sr1—Na2	73.05 (3)	Si2—O8—O7	39.51 (6)
Si4—Sr1—Na2	58.072 (12)	Si7—O8—Na5^xii	126.62 (9)
Si4^i—Sr1—Na2	58.072 (12)	Si2—O8—Na5^xii	98.26 (8)
Na2^ii—Sr1—Na2	180.0	O7—O8—Na5^xii	58.91 (6)
O15^iii—Sr2—O15^iv	87.05 (8)	Si7—O8—O11	36.11 (6)
O15^iii—Sr2—O9^iii	94.08 (6)	Si2—O8—O11	97.87 (9)
O15^iv—Sr2—O9^iii	172.08 (5)	O7—O8—O11	136.33 (9)
O15^iii—Sr2—O9^iv	172.08 (5)	Na5^xii—O8—O11	162.66 (8)
O15^iv—Sr2—O9^iv	94.08 (6)	Si7—O8—O6	125.70 (9)
O9^iii—Sr2—O9^iv	85.88 (7)	Si2—O8—O6	37.07 (5)
O15^iii—Sr2—O5^v	78.69 (6)	O7—O8—O6	61.78 (6)
O15^iv—Sr2—O5^v	91.38 (6)	Na5^xii—O8—O6	106.69 (7)
O9^iii—Sr2—O5^v	81.17 (5)	O11—O8—O6	90.08 (7)
O9^iv—Sr2—O5^v	109.09 (5)	Si7—O8—O2	35.61 (6)
O15^iii—Sr2—O5	91.38 (6)	Si2—O8—O2	156.05 (10)
O15^iv—Sr2—O5	78.69 (6)	O7—O8—O2	163.80 (10)
O9^iii—Sr2—O5	109.09 (5)	Na5^xii—O8—O2	105.00 (8)
O9^iv—Sr2—O5	81.17 (5)	O11—O8—O2	59.84 (6)
O5^v—Sr2—O5	166.38 (7)	O6—O8—O2	127.20 (7)
O15^iii—Sr2—O11^v	138.17 (5)	Si7—O8—O16	34.67 (5)
O15^iv—Sr2—O11^v	77.46 (5)	Si2—O8—O16	119.76 (11)
O9^iii—Sr2—O11^v	96.65 (5)	O7—O8—O16	123.06 (8)
O9^iv—Sr2—O11^v	49.54 (5)	Na5^xii—O8—O16	104.62 (7)
O5^v—Sr2—O11^v	63.34 (5)	O11—O8—O16	61.40 (7)
O5—Sr2—O11^v	122.35 (5)	O6—O8—O16	143.42 (10)
O15^iii—Sr2—O11	77.46 (5)	O2—O8—O16	59.68 (6)
O15^iv—Sr2—O11	138.17 (5)	Si7—O8—O5	99.12 (10)
O9^iii—Sr2—O11	49.54 (5)	Si2—O8—O5	32.01 (6)
O9^iv—Sr2—O11	96.65 (5)	O7—O8—O5	61.91 (7)
O5^v—Sr2—O11	122.35 (5)	Na5^xii—O8—O5	116.38 (7)
O5—Sr2—O11	63.34 (5)	O11—O8—O5	75.47 (7)
O11^v—Sr2—O11	137.29 (5)	O6—O8—O5	60.52 (6)
O15^iii—Sr2—Na4^ii	43.53 (4)	O2—O8—O5	133.39 (9)
O15^iv—Sr2—Na4^ii	43.53 (4)	O16—O8—O5	88.75 (8)
O9^iii—Sr2—Na4^ii	137.06 (4)	Si7—O8—OW4^ii	96.64 (9)
O9^iv—Sr2—Na4^ii	137.06 (4)	Si2—O8—OW4^ii	101.89 (10)
O5^v—Sr2—Na4^ii	83.19 (4)	O7—O8—OW4^ii	71.15 (8)
O5—Sr2—Na4^ii	83.19 (4)	Na5^xii—O8—OW4^ii	43.71 (7)
O11^v—Sr2—Na4^ii	111.35 (3)	O11—O8—OW4^ii	125.87 (9)
O11—Sr2—Na4^ii	111.35 (3)	O6—O8—OW4^ii	132.90 (9)
O15^iii—Sr2—Si3^iv	163.23 (4)	O2—O8—OW4^ii	98.86 (9)
O15^iv—Sr2—Si3^iv	80.70 (4)	O16—O8—OW4^ii	65.01 (8)
O9^iii—Sr2—Si3^iv	96.53 (4)	O5—O8—OW4^ii	96.74 (9)
O9^iv—Sr2—Si3^iv	23.47 (4)	Si3—O9—Na3^iv	120.68 (9)
O5^v—Sr2—Si3^iv	90.13 (4)	Si3—O9—Na4^iv	112.99 (9)
O5—Sr2—Si3^iv	97.35 (4)	Na3^iv—O9—Na4^iv	109.69 (7)
O11^v—Sr2—Si3^iv	27.30 (3)	Si3—O9—Sr2^iv	116.97 (9)
O11—Sr2—Si3^iv	119.27 (3)	Na3^iv—O9—Sr2^iv	100.69 (7)
Na4^ii—Sr2—Si3^iv	123.286 (11)	Na4^iv—O9—Sr2^iv	91.56 (5)
O15^iii—Sr2—Si3^iii	80.70 (4)	Si3—O9—O11^xii	36.53 (6)
O15^iv—Sr2—Si3^iii	163.23 (4)	Na3^iv—O9—O11^xii	147.42 (8)
O9^iii—Sr2—Si3^iii	23.47 (4)	Na4^iv—O9—O11^xii	102.46 (7)
O9^iv—Sr2—Si3^iii	96.53 (4)	Sr2^iv—O9—O11^xii	83.26 (6)
O5^v—Sr2—Si3^iii	97.35 (4)	Si3—O9—O10^ii	32.41 (5)
O5—Sr2—Si3^iii	90.13 (4)	Na3^iv—O9—O10^ii	116.52 (8)
O11^v—Sr2—Si3^iii	119.27 (3)	Na4^iv—O9—O10^ii	87.45 (6)
O11—Sr2—Si3^iii	27.30 (3)	Sr2^iv—O9—O10^ii	140.77 (8)
Na4^ii—Sr2—Si3^iii	123.286 (11)	O11^xii—O9—O10^ii	58.86 (6)
Si3^iv—Sr2—Si3^iii	113.43 (2)	Si3—O9—O7	33.07 (5)
O15^iii—Sr2—Na4	136.47 (4)	Na3^iv—O9—O7	91.40 (7)
O15^iv—Sr2—Na4	136.47 (4)	Na4^iv—O9—O7	143.96 (8)
O9^iii—Sr2—Na4	42.94 (4)	Sr2^iv—O9—O7	113.50 (7)
O9^iv—Sr2—Na4	42.94 (4)	O11^xii—O9—O7	58.24 (6)
O5^v—Sr2—Na4	96.81 (4)	O10^ii—O9—O7	56.67 (6)
O5—Sr2—Na4	96.81 (4)	Si3—O9—OW2^iv	137.88 (9)
O11^v—Sr2—Na4	68.65 (3)	Na3^iv—O9—OW2^iv	59.89 (6)
O11—Sr2—Na4	68.65 (3)	Na4^iv—O9—OW2^iv	49.89 (5)
Na4^ii—Sr2—Na4	180.0	Sr2^iv—O9—OW2^iv	102.88 (6)
Si3^iv—Sr2—Na4	56.714 (11)	O11^xii—O9—OW2^iv	151.23 (8)
Si3^iii—Sr2—Na4	56.714 (11)	O10^ii—O9—OW2^iv	106.14 (7)
O12^vi—Na1—O17^vii	161.65 (7)	O7—O9—OW2^iv	137.51 (7)
O12^vi—Na1—O19^viii	103.38 (7)	Si3—O9—O5^iv	139.32 (9)
O17^vii—Na1—O19^viii	94.19 (7)	Na3^iv—O9—O5^iv	49.42 (5)
O12^vi—Na1—O19^ix	78.44 (7)	Na4^iv—O9—O5^iv	106.53 (6)
O17^vii—Na1—O19^ix	95.21 (7)	Sr2^iv—O9—O5^iv	51.27 (4)
O19^viii—Na1—O19^ix	94.33 (7)	O11^xii—O9—O5^iv	125.49 (7)
O12^vi—Na1—OW1	93.28 (8)	O10^ii—O9—O5^iv	162.56 (7)
O17^vii—Na1—OW1	88.97 (8)	O7—O9—O5^iv	109.35 (7)
O19^viii—Na1—OW1	99.35 (7)	OW2^iv—O9—O5^iv	76.73 (6)
O19^ix—Na1—OW1	165.37 (8)	Si3—O9—O15^ii	82.76 (7)
O12^vi—Na1—OW1^ix	64.38 (7)	Na3^iv—O9—O15^ii	101.21 (7)
O17^vii—Na1—OW1^ix	97.30 (8)	Na4^iv—O9—O15^ii	44.83 (4)
O19^viii—Na1—OW1^ix	162.58 (8)	Sr2^iv—O9—O15^ii	135.81 (6)
O19^ix—Na1—OW1^ix	71.67 (6)	O11^xii—O9—O15^ii	97.74 (6)
OW1—Na1—OW1^ix	93.91 (8)	O10^ii—O9—O15^ii	50.63 (5)
O12^vi—Na1—O14^vi	58.33 (5)	O7—O9—O15^ii	103.82 (6)
O17^vii—Na1—O14^vi	138.67 (6)	OW2^iv—O9—O15^ii	58.18 (6)
O19^viii—Na1—O14^vi	57.06 (6)	O5^iv—O9—O15^ii	134.90 (6)
O19^ix—Na1—O14^vi	114.30 (7)	Si3—O9—O9^xv	127.16 (11)
OW1—Na1—O14^vi	69.88 (7)	Na3^iv—O9—O9^xv	112.14 (9)
OW1^ix—Na1—O14^vi	118.53 (7)	Na4^iv—O9—O9^xv	44.50 (4)
O12^vi—Na1—Si4^vi	28.53 (4)	Sr2^iv—O9—O9^xv	47.06 (4)
O17^vii—Na1—Si4^vi	164.86 (6)	O11^xii—O9—O9^xv	94.34 (7)
O19^viii—Na1—Si4^vi	83.19 (6)	O10^ii—O9—O9^xv	120.70 (7)
O19^ix—Na1—Si4^vi	99.85 (6)	O7—O9—O9^xv	150.66 (8)
OW1—Na1—Si4^vi	76.82 (6)	OW2^iv—O9—O9^xv	71.61 (6)
OW1^ix—Na1—Si4^vi	88.94 (6)	O5^iv—O9—O9^xv	76.68 (5)
O14^vi—Na1—Si4^vi	30.45 (3)	O15^ii—O9—O9^xv	89.05 (3)
O12^vi—Na1—Si8^viii	80.31 (5)	Si3^viii—O10—Si5	140.80 (13)
O17^vii—Na1—Si8^viii	118.03 (6)	Si3^viii—O10—O16^xii	153.11 (11)
O19^viii—Na1—Si8^viii	27.36 (5)	Si5—O10—O16^xii	38.13 (6)
O19^ix—Na1—Si8^viii	103.98 (6)	Si3^viii—O10—O7^viii	38.18 (5)
OW1—Na1—Si8^viii	86.24 (6)	Si5—O10—O7^viii	150.13 (12)
OW1^ix—Na1—Si8^viii	144.65 (7)	O16^xii—O10—O7^viii	163.86 (10)
O14^vi—Na1—Si8^viii	29.80 (3)	Si3^viii—O10—O6	138.79 (12)
Si4^vi—Na1—Si8^viii	56.63 (2)	Si5—O10—O6	37.28 (6)
O12^vi—Na1—Si6^vii	137.08 (6)	O16^xii—O10—O6	61.30 (6)
O17^vii—Na1—Si6^vii	25.33 (4)	O7^viii—O10—O6	117.76 (8)
O19^viii—Na1—Si6^vii	113.78 (6)	Si3^viii—O10—O11^xiii	36.85 (6)
O19^ix—Na1—Si6^vii	78.11 (5)	Si5—O10—O11^xiii	143.16 (10)
OW1—Na1—Si6^vii	100.82 (7)	O16^xii—O10—O11^xiii	122.12 (9)
OW1^ix—Na1—Si6^vii	74.30 (6)	O7^viii—O10—O11^xiii	59.97 (6)
O14^vi—Na1—Si6^vii	163.84 (5)	O6—O10—O11^xiii	175.40 (10)
Si4^vi—Na1—Si6^vii	162.95 (4)	Si3^viii—O10—O15	109.31 (10)
Si8^viii—Na1—Si6^vii	140.41 (4)	Si5—O10—O15	31.86 (6)
O12^vi—Na1—Na1^x	90.94 (6)	O16^xii—O10—O15	61.34 (6)
O17^vii—Na1—Na1^x	96.94 (6)	O7^viii—O10—O15	133.62 (10)
O19^viii—Na1—Na1^x	48.41 (5)	O6—O10—O15	59.51 (6)
O19^ix—Na1—Na1^x	45.92 (5)	O11^xiii—O10—O15	118.61 (8)
OW1—Na1—Na1^x	147.44 (7)	Si3^viii—O10—O9^viii	31.37 (6)
OW1^ix—Na1—Na1^x	116.84 (7)	Si5—O10—O9^viii	109.45 (10)
O14^vi—Na1—Na1^x	85.23 (5)	O16^xii—O10—O9^viii	133.99 (9)
Si4^vi—Na1—Na1^x	92.46 (4)	O7^viii—O10—O9^viii	61.87 (6)
Si8^viii—Na1—Na1^x	62.71 (4)	O6—O10—O9^viii	116.88 (9)
Si6^vii—Na1—Na1^x	97.82 (5)	O11^xiii—O10—O9^viii	58.61 (6)
O12^vi—Na1—Si8^ix	100.11 (6)	O15—O10—O9^viii	78.30 (8)
O17^vii—Na1—Si8^ix	70.88 (5)	Si3^viii—O10—Na5^xiii	82.45 (6)
O19^viii—Na1—Si8^ix	101.25 (6)	Si5—O10—Na5^xiii	129.42 (9)
O19^ix—Na1—Si8^ix	24.97 (5)	O16^xii—O10—Na5^xiii	117.81 (8)
OW1—Na1—Si8^ix	152.02 (7)	O7^viii—O10—Na5^xiii	46.42 (5)
OW1^ix—Na1—Si8^ix	70.54 (6)	O6—O10—Na5^xiii	95.04 (6)
O14^vi—Na1—Si8^ix	137.84 (5)	O11^xiii—O10—Na5^xiii	85.93 (5)
Si4^vi—Na1—Si8^ix	124.26 (4)	O15—O10—Na5^xiii	152.56 (8)
Si8^viii—Na1—Si8^ix	120.06 (4)	O9^viii—O10—Na5^xiii	108.20 (6)
Si6^vii—Na1—Si8^ix	53.29 (2)	Si3^viii—O10—Na4^xi	69.77 (7)
Na1^x—Na1—Si8^ix	57.35 (3)	Si5—O10—Na4^xi	73.80 (7)
O17^viii—Na2—O17^vii	90.88 (9)	O16^xii—O10—Na4^xi	91.32 (6)
O17^viii—Na2—O12	90.41 (6)	O7^viii—O10—Na4^xi	104.47 (7)
O17^vii—Na2—O12	167.97 (6)	O6—O10—Na4^xi	100.05 (7)
O17^viii—Na2—O12^i	167.97 (6)	O11^xiii—O10—Na4^xi	77.21 (6)
O17^vii—Na2—O12^i	90.41 (6)	O15—O10—Na4^xi	42.76 (5)
O12—Na2—O12^i	90.82 (9)	O9^viii—O10—Na4^xi	42.66 (5)
O17^viii—Na2—OW1	98.42 (7)	Na5^xiii—O10—Na4^xi	150.86 (5)
O17^vii—Na2—OW1	92.13 (7)	Si7—O11—Si3^iii	135.83 (11)
O12—Na2—OW1	99.52 (7)	Si7—O11—O7^iii	98.00 (8)
O12^i—Na2—OW1	69.57 (7)	Si3^iii—O11—O7^iii	37.85 (5)
O17^viii—Na2—OW1^i	92.13 (7)	Si7—O11—O2	35.89 (6)
O17^vii—Na2—OW1^i	98.42 (7)	Si3^iii—O11—O2	116.62 (9)
O12—Na2—OW1^i	69.57 (7)	O7^iii—O11—O2	84.92 (7)
O12^i—Na2—OW1^i	99.52 (7)	Si7—O11—O8	36.36 (6)
OW1—Na2—OW1^i	164.97 (11)	Si3^iii—O11—O8	170.67 (10)
O17^viii—Na2—Si6^vii	110.85 (6)	O7^iii—O11—O8	134.04 (8)
O17^vii—Na2—Si6^vii	24.94 (4)	O2—O11—O8	60.32 (6)
O12—Na2—Si6^vii	145.91 (5)	Si7—O11—O9^iii	142.93 (10)
O12^i—Na2—Si6^vii	73.92 (4)	Si3^iii—O11—O9^iii	34.86 (6)
OW1—Na2—Si6^vii	103.12 (6)	O7^iii—O11—O9^iii	63.06 (6)
OW1^i—Na2—Si6^vii	82.86 (6)	O2—O11—O9^iii	147.98 (8)
O17^viii—Na2—Si6^viii	24.94 (4)	O8—O11—O9^iii	144.30 (9)
O17^vii—Na2—Si6^viii	110.85 (6)	Si7—O11—O10^vi	137.21 (10)
O12—Na2—Si6^viii	73.92 (4)	Si3^iii—O11—O10^vi	36.37 (6)
O12^i—Na2—Si6^viii	145.91 (5)	O7^iii—O11—O10^vi	59.31 (6)
OW1—Na2—Si6^viii	82.86 (6)	O2—O11—O10^vi	102.35 (8)
OW1^i—Na2—Si6^viii	103.12 (6)	O8—O11—O10^vi	150.56 (9)
Si6^vii—Na2—Si6^viii	133.78 (5)	O9^iii—O11—O10^vi	62.53 (7)
O17^viii—Na2—Si4	75.58 (4)	Si7—O11—O16	33.41 (6)
O17^vii—Na2—Si4	163.96 (6)	Si3^iii—O11—O16	110.66 (8)
O12—Na2—Si4	25.26 (4)	O7^iii—O11—O16	77.07 (6)
O12^i—Na2—Si4	101.06 (6)	O2—O11—O16	59.38 (6)
OW1—Na2—Si4	81.60 (6)	O8—O11—O16	60.02 (6)
OW1^i—Na2—Si4	90.76 (6)	O9^iii—O11—O16	109.56 (8)
Si6^vii—Na2—Si4	171.01 (4)	O10^vi—O11—O16	134.70 (8)
Si6^viii—Na2—Si4	53.887 (16)	Si7—O11—OW4	96.77 (10)
O17^viii—Na2—Si4^i	163.96 (6)	Si3^iii—O11—OW4	110.00 (10)
O17^vii—Na2—Si4^i	75.58 (4)	O7^iii—O11—OW4	124.92 (9)
O12—Na2—Si4^i	101.06 (6)	O2—O11—OW4	77.23 (9)
O12^i—Na2—Si4^i	25.26 (4)	O8—O11—OW4	78.42 (8)
OW1—Na2—Si4^i	90.76 (6)	O9^iii—O11—OW4	120.29 (9)
OW1^i—Na2—Si4^i	81.60 (6)	O10^vi—O11—OW4	74.30 (8)
Si6^vii—Na2—Si4^i	53.887 (16)	O16—O11—OW4	130.15 (9)
Si6^viii—Na2—Si4^i	171.01 (4)	Si7—O11—O5	79.99 (7)
Si4—Na2—Si4^i	119.01 (5)	Si3^iii—O11—O5	126.20 (9)
O17^viii—Na2—Na1	93.52 (6)	O7^iii—O11—O5	134.60 (8)
O17^vii—Na2—Na1	42.48 (5)	O2—O11—O5	112.80 (7)
O12—Na2—Na1	149.30 (5)	O8—O11—O5	53.73 (6)
O12^i—Na2—Na1	79.44 (4)	O9^iii—O11—O5	91.46 (7)
OW1—Na2—Na1	49.79 (6)	O10^vi—O11—O5	142.37 (8)
OW1^i—Na2—Na1	140.51 (6)	O16—O11—O5	77.59 (6)
Si6^vii—Na2—Na1	58.68 (2)	OW4—O11—O5	100.17 (9)
Si6^viii—Na2—Na1	98.14 (3)	Si7—O11—Sr2	107.72 (8)
Si4—Na2—Na1	128.45 (2)	Si3^iii—O11—Sr2	80.28 (7)
Si4^i—Na2—Na1	82.37 (2)	O7^iii—O11—Sr2	92.80 (6)
O17^viii—Na2—Na1^i	42.48 (5)	O2—O11—Sr2	141.87 (7)
O17^vii—Na2—Na1^i	93.52 (6)	O8—O11—Sr2	97.23 (6)
O12—Na2—Na1^i	79.44 (4)	O9^iii—O11—Sr2	47.20 (4)
O12^i—Na2—Na1^i	149.30 (5)	O10^vi—O11—Sr2	109.05 (7)
OW1—Na2—Na1^i	140.51 (6)	O16—O11—Sr2	82.97 (6)
OW1^i—Na2—Na1^i	49.79 (6)	OW4—O11—Sr2	131.56 (8)
Si6^vii—Na2—Na1^i	98.14 (3)	O5—O11—Sr2	47.06 (4)
Si6^viii—Na2—Na1^i	58.68 (2)	Si4—O12—Na1^xiii	106.62 (8)
Si4—Na2—Na1^i	82.37 (2)	Si4—O12—Na2	114.05 (9)
Si4^i—Na2—Na1^i	128.45 (2)	Na1^xiii—O12—Na2	123.88 (8)
Na1—Na2—Na1^i	122.38 (6)	Si4—O12—Sr1	111.86 (8)
O9^iv—Na3—O15	170.25 (8)	Na1^xiii—O12—Sr1	107.72 (7)
O9^iv—Na3—O5^iv	94.99 (7)	Na2—O12—Sr1	91.49 (6)
O15—Na3—O5^iv	82.61 (7)	Si4—O12—O1	37.35 (6)
O9^iv—Na3—O5	88.52 (7)	Na1^xiii—O12—O1	129.72 (8)
O15—Na3—O5	101.09 (7)	Na2—O12—O1	105.74 (7)
O5^iv—Na3—O5	95.54 (7)	Sr1—O12—O1	76.07 (6)
O9^iv—Na3—OW2^xi	92.05 (7)	Si4—O12—O13	33.13 (5)
O15—Na3—OW2^xi	78.27 (7)	Na1^xiii—O12—O13	112.11 (8)
O5^iv—Na3—OW2^xi	68.54 (6)	Na2—O12—O13	86.20 (6)
O5—Na3—OW2^xi	164.07 (8)	Sr1—O12—O13	133.23 (8)
O9^iv—Na3—O6	128.58 (7)	O1—O12—O13	59.93 (6)
O15—Na3—O6	59.31 (5)	Si4—O12—O14	33.47 (6)
O5^iv—Na3—O6	124.48 (7)	Na1^xiii—O12—O14	74.52 (6)
O5—Na3—O6	59.12 (6)	Na2—O12—O14	143.58 (8)
OW2^xi—Na3—O6	130.12 (7)	Sr1—O12—O14	113.85 (7)
O9^iv—Na3—OW2	77.40 (7)	O1—O12—O14	59.64 (6)
O15—Na3—OW2	102.56 (7)	O13—O12—O14	57.42 (6)
O5^iv—Na3—OW2	164.30 (8)	Si4—O12—OW1^i	148.47 (10)
O5—Na3—OW2	97.94 (6)	Na1^xiii—O12—OW1^i	67.59 (7)
OW2^xi—Na3—OW2	97.72 (7)	Na2—O12—OW1^i	57.36 (6)
O6—Na3—OW2	69.94 (6)	Sr1—O12—OW1^i	99.09 (7)
O9^iv—Na3—Si5	155.51 (6)	O1—O12—OW1^i	162.68 (9)
O15—Na3—Si5	29.64 (4)	O13—O12—OW1^i	117.97 (8)
O5^iv—Na3—Si5	109.22 (6)	O14—O12—OW1^i	135.75 (8)
O5—Na3—Si5	85.59 (6)	Si4—O12—O19^i	137.86 (9)
OW2^xi—Na3—Si5	100.04 (6)	Na1^xiii—O12—O19^i	53.44 (6)
O6—Na3—Si5	31.58 (3)	Na2—O12—O19^i	107.03 (7)
OW2—Na3—Si5	79.91 (6)	Sr1—O12—O19^i	56.78 (5)
O9^iv—Na3—Si2	112.56 (6)	O1—O12—O19^i	122.05 (7)
O15—Na3—Si2	77.11 (5)	O13—O12—O19^i	164.19 (8)
O5^iv—Na3—Si2	108.30 (6)	O14—O12—O19^i	108.71 (7)
O5—Na3—Si2	29.06 (5)	OW1^i—O12—O19^i	65.26 (7)
OW2^xi—Na3—Si2	155.38 (6)	Si4—O12—O17^viii	85.11 (7)
O6—Na3—Si2	30.62 (4)	Na1^xiii—O12—O17^viii	107.20 (7)
OW2—Na3—Si2	87.36 (6)	Na2—O12—O17^viii	43.89 (4)
Si5—Na3—Si2	56.98 (3)	Sr1—O12—O17^viii	134.16 (6)
O9^iv—Na3—Si3^iv	23.86 (4)	O1—O12—O17^viii	102.70 (7)
O15—Na3—Si3^iv	148.09 (6)	O13—O12—O17^viii	51.99 (5)
O5^iv—Na3—Si3^iv	75.57 (5)	O14—O12—O17^viii	103.41 (6)
O5—Na3—Si3^iv	103.91 (6)	OW1^i—O12—O17^viii	68.46 (6)
OW2^xi—Na3—Si3^iv	72.23 (6)	O19^i—O12—O17^viii	133.71 (7)
O6—Na3—Si3^iv	152.41 (5)	Si4—O12—O12^i	124.00 (10)
OW2—Na3—Si3^iv	93.34 (6)	Na1^xiii—O12—O12^i	128.38 (9)
Si5—Na3—Si3^iv	169.12 (5)	Na2—O12—O12^i	44.59 (4)
Si2—Na3—Si3^iv	131.75 (4)	Sr1—O12—O12^i	46.89 (4)
O9^iv—Na3—Na3^iv	92.55 (6)	O1—O12—O12^i	91.66 (7)
O15—Na3—Na3^iv	92.90 (6)	O13—O12—O12^i	115.63 (8)
O5^iv—Na3—Na3^iv	48.59 (5)	O14—O12—O12^i	150.66 (9)
O5—Na3—Na3^iv	46.95 (5)	OW1^i—O12—O12^i	73.57 (7)
OW2^xi—Na3—Na3^iv	117.13 (7)	O19^i—O12—O12^i	80.17 (6)
O6—Na3—Na3^iv	91.66 (6)	O17^viii—O12—O12^i	87.87 (4)
OW2—Na3—Na3^iv	144.18 (7)	Si4—O12—Na1^i	104.61 (7)
Si5—Na3—Na3^iv	100.59 (5)	Na1^xiii—O12—Na1^i	71.30 (5)
Si2—Na3—Na3^iv	64.65 (4)	Na2—O12—Na1^i	62.40 (4)
Si3^iv—Na3—Na3^iv	89.89 (4)	Sr1—O12—Na1^i	141.68 (6)
O9^iv—Na3—O7^iv	49.51 (5)	O1—O12—Na1^i	135.34 (7)
O15—Na3—O7^iv	124.63 (6)	O13—O12—Na1^i	75.90 (5)
O5^iv—Na3—O7^iv	48.75 (5)	O14—O12—Na1^i	102.92 (6)
O5—Na3—O7^iv	107.41 (6)	OW1^i—O12—Na1^i	43.86 (5)
OW2^xi—Na3—O7^iv	61.95 (6)	O19^i—O12—Na1^i	102.20 (6)
O6—Na3—O7^iv	165.95 (6)	O17^viii—O12—Na1^i	37.28 (4)
OW2—Na3—O7^iv	118.73 (6)	O12^i—O12—Na1^i	102.28 (4)
Si5—Na3—O7^iv	154.27 (4)	Si4—O13—Si6^viii	139.85 (14)
Si2—Na3—O7^iv	135.45 (5)	Si4—O13—O3^viii	152.07 (11)
Si3^iv—Na3—O7^iv	27.23 (3)	Si6^viii—O13—O3^viii	38.87 (6)
Na3^iv—Na3—O7^iv	75.01 (5)	Si4—O13—O14	37.54 (6)
O9^iii—Na4—O9^iv	91.00 (8)	Si6^viii—O13—O14	145.00 (12)
O9^iii—Na4—O15^xi	171.79 (5)	O3^viii—O13—O14	168.19 (10)
O9^iv—Na4—O15^xi	90.43 (6)	Si4—O13—O18^viii	140.93 (12)
O9^iii—Na4—O15^vi	90.43 (6)	Si6^viii—O13—O18^viii	37.10 (5)
O9^iv—Na4—O15^vi	171.79 (5)	O3^viii—O13—O18^viii	60.21 (6)
O15^xi—Na4—O15^vi	89.30 (9)	O14—O13—O18^viii	116.19 (9)
O9^iii—Na4—OW2^v	82.88 (6)	Si4—O13—O1	36.08 (6)
O9^iv—Na4—OW2^v	105.59 (7)	Si6^viii—O13—O1	145.56 (10)
O15^xi—Na4—OW2^v	88.95 (7)	O3^viii—O13—O1	123.24 (9)
O15^vi—Na4—OW2^v	82.61 (7)	O14—O13—O1	60.38 (6)
O9^iii—Na4—OW2	105.59 (7)	O18^viii—O13—O1	176.54 (9)
O9^iv—Na4—OW2	82.88 (6)	Si4—O13—O12	32.17 (6)
O15^xi—Na4—OW2	82.61 (7)	Si6^viii—O13—O12	107.73 (10)
O15^vi—Na4—OW2	88.95 (7)	O3^viii—O13—O12	130.27 (9)
OW2^v—Na4—OW2	168.15 (11)	O14—O13—O12	61.53 (6)
O9^iii—Na4—Si3^iv	103.54 (5)	O18^viii—O13—O12	120.62 (9)
O9^iv—Na4—Si3^iv	25.64 (4)	O1—O13—O12	57.85 (6)
O15^xi—Na4—Si3^iv	74.82 (4)	Si4—O13—O17^viii	109.02 (10)
O15^vi—Na4—Si3^iv	159.95 (5)	Si6^viii—O13—O17^viii	31.17 (6)
OW2^v—Na4—Si3^iv	84.90 (5)	O3^viii—O13—O17^viii	61.26 (6)
OW2—Na4—Si3^iv	100.79 (5)	O14—O13—O17^viii	128.19 (10)
O9^iii—Na4—Si3^iii	25.64 (4)	O18^viii—O13—O17^viii	60.09 (6)
O9^iv—Na4—Si3^iii	103.54 (5)	O1—O13—O17^viii	121.19 (8)
O15^xi—Na4—Si3^iii	159.95 (5)	O12—O13—O17^viii	76.87 (7)
O15^vi—Na4—Si3^iii	74.82 (4)	Si4—O13—OW4	115.46 (9)
OW2^v—Na4—Si3^iii	100.79 (5)	Si6^viii—O13—OW4	103.46 (9)
OW2—Na4—Si3^iii	84.90 (5)	O3^viii—O13—OW4	82.23 (8)
Si3^iv—Na4—Si3^iii	123.13 (4)	O14—O13—OW4	86.04 (8)
O9^iii—Na4—Si5^vi	73.08 (4)	O18^viii—O13—OW4	79.15 (7)
O9^iv—Na4—Si5^vi	151.58 (5)	O1—O13—OW4	100.73 (8)
O15^xi—Na4—Si5^vi	108.72 (5)	O12—O13—OW4	146.64 (8)
O15^vi—Na4—Si5^vi	23.34 (4)	O17^viii—O13—OW4	134.56 (7)
OW2^v—Na4—Si5^vi	95.82 (6)	Si4—O13—Na2	72.39 (7)
OW2—Na4—Si5^vi	79.16 (5)	Si6^viii—O13—Na2	71.40 (7)
Si3^iv—Na4—Si5^vi	176.38 (4)	O3^viii—O13—Na2	86.77 (6)
Si3^iii—Na4—Si5^vi	53.256 (16)	O14—O13—Na2	105.03 (7)
O9^iii—Na4—Si5^xi	151.58 (5)	O18^viii—O13—Na2	101.31 (7)
O9^iv—Na4—Si5^xi	73.08 (4)	O1—O13—Na2	79.61 (6)
O15^xi—Na4—Si5^xi	23.34 (4)	O12—O13—Na2	43.52 (5)
O15^vi—Na4—Si5^xi	108.72 (5)	O17^viii—O13—Na2	41.87 (5)
OW2^v—Na4—Si5^xi	79.16 (5)	OW4—O13—Na2	167.03 (9)
OW2—Na4—Si5^xi	95.82 (6)	Si4—O13—OW3^xiii	94.27 (8)
Si3^iv—Na4—Si5^xi	53.256 (16)	Si6^viii—O13—OW3^xiii	100.42 (8)
Si3^iii—Na4—Si5^xi	176.39 (4)	O3^viii—O13—OW3^xiii	113.65 (7)
Si5^vi—Na4—Si5^xi	130.36 (4)	O14—O13—OW3^xiii	57.52 (6)
O9^iii—Na4—Sr2^viii	134.50 (4)	O18^viii—O13—OW3^xiii	63.52 (6)
O9^iv—Na4—Sr2^viii	134.50 (4)	O1—O13—OW3^xiii	113.54 (7)
O15^xi—Na4—Sr2^viii	44.65 (4)	O12—O13—OW3^xiii	107.07 (8)
O15^vi—Na4—Sr2^viii	44.65 (4)	O17^viii—O13—OW3^xiii	114.29 (8)
OW2^v—Na4—Sr2^viii	84.08 (6)	OW4—O13—OW3^xiii	54.94 (8)
OW2—Na4—Sr2^viii	84.08 (6)	Na2—O13—OW3^xiii	136.94 (8)
Si3^iv—Na4—Sr2^viii	118.43 (2)	Si4—O13—Na5^xiii	131.39 (8)
Si3^iii—Na4—Sr2^viii	118.43 (2)	Si6^viii—O13—Na5^xiii	75.92 (6)
Si5^vi—Na4—Sr2^viii	65.18 (2)	O3^viii—O13—Na5^xiii	76.02 (6)
Si5^xi—Na4—Sr2^viii	65.18 (2)	O14—O13—Na5^xiii	93.86 (6)
O9^iii—Na4—Sr2	45.50 (4)	O18^viii—O13—Na5^xiii	43.26 (5)
O9^iv—Na4—Sr2	45.50 (4)	O1—O13—Na5^xiii	135.67 (7)
O15^xi—Na4—Sr2	135.35 (4)	O12—O13—Na5^xiii	143.05 (8)
O15^vi—Na4—Sr2	135.35 (4)	O17^viii—O13—Na5^xiii	103.13 (5)
OW2^v—Na4—Sr2	95.92 (6)	OW4—O13—Na5^xiii	37.92 (5)
OW2—Na4—Sr2	95.92 (6)	Na2—O13—Na5^xiii	144.55 (5)
Si3^iv—Na4—Sr2	61.57 (2)	OW3^xiii—O13—Na5^xiii	38.43 (5)
Si3^iii—Na4—Sr2	61.57 (2)	Si8^xii—O14—Si4	137.10 (11)
Si5^vi—Na4—Sr2	114.82 (2)	Si8^xii—O14—O13	174.04 (10)
Si5^xi—Na4—Sr2	114.82 (2)	Si4—O14—O13	37.02 (6)
Sr2^viii—Na4—Sr2	180.0	Si8^xii—O14—O4^xii	37.75 (6)
OW4^vi—Na5—OW3	85.48 (10)	Si4—O14—O4^xii	169.87 (10)
OW4^vi—Na5—O7^iii	92.14 (11)	O13—O14—O4^xii	148.19 (9)
OW3—Na5—O7^iii	120.48 (9)	Si8^xii—O14—O1	115.36 (9)
OW4^vi—Na5—O18^iii	106.46 (11)	Si4—O14—O1	36.44 (6)
OW3—Na5—O18^iii	84.04 (8)	O13—O14—O1	60.58 (6)
O7^iii—Na5—O18^iii	150.77 (7)	O4^xii—O14—O1	133.62 (9)
OW4^vi—Na5—O4	165.05 (12)	Si8^xii—O14—O18	36.07 (6)
OW3—Na5—O4	93.26 (9)	Si4—O14—O18	113.65 (8)
O7^iii—Na5—O4	101.27 (6)	O13—O14—O18	141.57 (8)
O18^iii—Na5—O4	58.62 (6)	O4^xii—O14—O18	56.89 (6)
OW4^vi—Na5—O8^iii	86.08 (10)	O1—O14—O18	82.07 (6)
OW3—Na5—O8^iii	171.52 (10)	Si8^xii—O14—O19^xii	32.77 (6)
O7^iii—Na5—O8^iii	59.10 (6)	Si4—O14—O19^xii	118.47 (10)
O18^iii—Na5—O8^iii	99.10 (7)	O13—O14—O19^xii	143.84 (9)
O4—Na5—O8^iii	95.10 (6)	O4^xii—O14—O19^xii	61.87 (7)
OW4^vi—Na5—Si2^iii	90.86 (10)	O1—O14—O19^xii	119.06 (8)
OW3—Na5—Si2^iii	149.49 (8)	O18—O14—O19^xii	61.47 (6)
O7^iii—Na5—Si2^iii	29.27 (4)	Si8^xii—O14—O12	113.30 (9)
O18^iii—Na5—Si2^iii	125.80 (5)	Si4—O14—O12	32.07 (6)
O4—Na5—Si2^iii	97.59 (5)	O13—O14—O12	61.05 (6)
O8^iii—Na5—Si2^iii	29.93 (4)	O4^xii—O14—O12	149.29 (9)
OW4^vi—Na5—Si8	135.41 (11)	O1—O14—O12	57.75 (6)
OW3—Na5—Si8	90.65 (8)	O18—O14—O12	107.76 (7)
O7^iii—Na5—Si8	126.87 (5)	O19^xii—O14—O12	87.53 (7)
O18^iii—Na5—Si8	29.13 (4)	Si8^xii—O14—OW3^xiii	109.13 (8)
O4—Na5—Si8	29.65 (4)	Si4—O14—OW3^xiii	112.39 (9)
O8^iii—Na5—Si8	95.91 (5)	O13—O14—OW3^xiii	76.33 (7)
Si2^iii—Na5—Si8	112.45 (3)	O4^xii—O14—OW3^xiii	75.60 (7)
OW4^vi—Na5—O10^vi	76.37 (11)	O1—O14—OW3^xiii	130.63 (9)
OW3—Na5—O10^vi	74.22 (8)	O18—O14—OW3^xiii	130.38 (8)
O7^iii—Na5—O10^vi	47.86 (5)	O19^xii—O14—OW3^xiii	109.83 (8)
O18^iii—Na5—O10^vi	157.87 (6)	O12—O14—OW3^xiii	121.04 (8)
O4—Na5—O10^vi	117.65 (6)	Si8^xii—O14—Na1^xiii	81.79 (8)
O8^iii—Na5—O10^vi	103.00 (6)	Si4—O14—Na1^xiii	78.24 (7)
Si2^iii—Na5—O10^vi	75.48 (4)	O13—O14—Na1^xiii	94.68 (7)
Si8—Na5—O10^vi	144.45 (5)	O4^xii—O14—Na1^xiii	106.42 (7)
OW4^vi—Na5—O2	146.82 (11)	O1—O14—Na1^xiii	102.36 (7)
OW3—Na5—O2	82.76 (8)	O18—O14—Na1^xiii	102.31 (7)
O7^iii—Na5—O2	67.96 (5)	O19^xii—O14—Na1^xiii	49.18 (6)
O18^iii—Na5—O2	103.04 (6)	O12—O14—Na1^xiii	47.15 (5)
O4—Na5—O2	47.11 (5)	OW3^xiii—O14—Na1^xiii	104.12 (8)
O8^iii—Na5—O2	104.04 (5)	Si8^xii—O14—OW1^xiii	106.32 (9)
Si2^iii—Na5—O2	83.97 (4)	Si4—O14—OW1^xiii	88.49 (8)
Si8—Na5—O2	75.78 (4)	O13—O14—OW1^xiii	74.51 (7)
O10^vi—Na5—O2	70.59 (4)	O4^xii—O14—OW1^xiii	101.37 (7)
OW4^vi—Na5—O13^vi	65.01 (10)	O1—O14—OW1^xiii	124.93 (8)
OW3—Na5—O13^vi	65.85 (7)	O18—O14—OW1^xiii	141.15 (8)
O7^iii—Na5—O13^vi	156.47 (6)	O19^xii—O14—OW1^xiii	80.09 (7)
O18^iii—Na5—O13^vi	44.64 (5)	O12—O14—OW1^xiii	73.84 (7)
O4—Na5—O13^vi	100.88 (6)	OW3^xiii—O14—OW1^xiii	55.99 (8)
O8^iii—Na5—O13^vi	110.99 (6)	Na1^xiii—O14—OW1^xiii	49.28 (6)
Si2^iii—Na5—O13^vi	138.41 (5)	Si5—O15—Na4^xi	119.33 (9)
Si8—Na5—O13^vi	72.93 (4)	Si5—O15—Na3	100.66 (8)
O10^vi—Na5—O13^vi	125.29 (4)	Na4^xi—O15—Na3	103.18 (7)
O2—Na5—O13^vi	134.69 (5)	Si5—O15—Sr2^iv	135.65 (10)
O1—Si1—O2	108.38 (9)	Na4^xi—O15—Sr2^iv	91.82 (6)
O1—Si1—O3	110.90 (10)	Na3—O15—Sr2^iv	101.78 (7)
O2—Si1—O3	111.39 (9)	Si5—O15—O6	36.00 (6)
O1—Si1—O4	109.52 (9)	Na4^xi—O15—O6	141.03 (8)
O2—Si1—O4	108.89 (10)	Na3—O15—O6	68.38 (6)
O3—Si1—O4	107.73 (9)	Sr2^iv—O15—O6	126.93 (8)
O5—Si2—O6	113.50 (10)	Si5—O15—O16^xii	33.70 (6)
O5—Si2—O7	114.36 (9)	Na4^xi—O15—O16^xii	120.35 (8)
O6—Si2—O7	107.70 (9)	Na3—O15—O16^xii	127.49 (8)
O5—Si2—O8	114.19 (10)	Sr2^iv—O15—O16^xii	104.48 (7)
O6—Si2—O8	105.41 (9)	O6—O15—O16^xii	59.43 (6)
O7—Si2—O8	100.53 (9)	Si5—O15—O10	32.96 (5)
O5—Si2—Na3	52.29 (7)	Na4^xi—O15—O10	87.75 (6)
O6—Si2—Na3	62.72 (7)	Na3—O15—O10	100.84 (8)
O7—Si2—Na3	119.55 (6)	Sr2^iv—O15—O10	156.86 (9)
O8—Si2—Na3	139.88 (7)	O6—O15—O10	58.65 (6)
O5—Si2—Na5^xii	133.96 (7)	O16^xii—O15—O10	56.82 (6)
O6—Si2—Na5^xii	112.55 (8)	Si5—O15—OW2^xi	133.48 (9)
O7—Si2—Na5^xii	48.95 (6)	Na4^xi—O15—OW2^xi	49.98 (5)
O8—Si2—Na5^xii	51.81 (7)	Na3—O15—OW2^xi	54.67 (6)
Na3—Si2—Na5^xii	167.16 (4)	Sr2^iv—O15—OW2^xi	90.43 (6)
O9—Si3—O10^ii	116.22 (9)	O6—O15—OW2^xi	117.43 (8)
O9—Si3—O11^xii	108.61 (9)	O16^xii—O15—OW2^xi	163.12 (8)
O10^ii—Si3—O11^xii	106.78 (10)	O10—O15—OW2^xi	106.71 (8)
O9—Si3—O7	115.48 (9)	Si5—O15—O5^iv	142.46 (9)
O10^ii—Si3—O7	104.33 (9)	Na4^xi—O15—O5^iv	92.69 (6)
O11^xii—Si3—O7	104.49 (9)	Na3—O15—O5^iv	49.62 (5)
O9—Si3—Na3^iv	35.46 (6)	Sr2^iv—O15—O5^iv	53.43 (4)
O10^ii—Si3—Na3^iv	112.18 (8)	O6—O15—O5^iv	106.62 (7)
O11^xii—Si3—Na3^iv	136.44 (7)	O16^xii—O15—O5^iv	142.51 (8)
O7—Si3—Na3^iv	84.28 (7)	O10—O15—O5^iv	149.71 (8)
O9—Si3—Na4^iv	41.37 (6)	OW2^xi—O15—O5^iv	53.70 (6)
O10^ii—Si3—Na4^iv	83.22 (7)	Si5—O15—O15^xv	149.81 (12)
O11^xii—Si3—Na4^iv	97.32 (6)	Na4^xi—O15—O15^xv	45.35 (4)
O7—Si3—Na4^iv	153.45 (7)	Na3—O15—O15^xv	108.10 (9)
Na3^iv—Si3—Na4^iv	69.42 (3)	Sr2^iv—O15—O15^xv	46.47 (4)
O9—Si3—Sr2^iv	39.56 (6)	O6—O15—O15^xv	172.59 (7)
O10^ii—Si3—Sr2^iv	144.02 (7)	O16^xii—O15—O15^xv	122.99 (9)
O11^xii—Si3—Sr2^iv	72.42 (6)	O10—O15—O15^xv	128.76 (6)
O7—Si3—Sr2^iv	110.71 (6)	OW2^xi—O15—O15^xv	62.54 (6)
Na3^iv—Si3—Sr2^iv	64.72 (2)	O5^iv—O15—O15^xv	67.05 (6)
Na4^iv—Si3—Sr2^iv	61.72 (2)	Si5—O15—O9^viii	83.47 (7)
O12—Si4—O13	114.71 (9)	Na4^xi—O15—O9^viii	44.74 (4)
O12—Si4—O1	106.74 (9)	Na3—O15—O9^viii	85.36 (6)
O13—Si4—O1	108.17 (10)	Sr2^iv—O15—O9^viii	135.97 (6)
O12—Si4—O14	114.46 (10)	O6—O15—O9^viii	96.31 (6)
O13—Si4—O14	105.44 (9)	O16^xii—O15—O9^viii	104.83 (6)
O1—Si4—O14	106.95 (9)	O10—O15—O9^viii	51.06 (5)
O12—Si4—Na1^xiii	44.85 (6)	OW2^xi—O15—O9^viii	58.35 (5)
O13—Si4—Na1^xiii	117.62 (8)	O5^iv—O15—O9^viii	111.53 (6)
O1—Si4—Na1^xiii	133.03 (7)	O15^xv—O15—O9^viii	89.80 (3)
O14—Si4—Na1^xiii	71.30 (7)	Si5—O15—OW2^xiii	93.54 (8)
O12—Si4—Na2	40.69 (6)	Na4^xi—O15—OW2^xiii	46.67 (5)
O13—Si4—Na2	80.40 (7)	Na3—O15—OW2^xiii	149.53 (8)
O1—Si4—Na2	99.15 (6)	Sr2^iv—O15—OW2^xiii	85.90 (6)
O14—Si4—Na2	149.49 (7)	O6—O15—OW2^xiii	129.53 (8)
Na1^xiii—Si4—Na2	79.43 (3)	O16^xii—O15—OW2^xiii	77.25 (7)
O12—Si4—Sr1	42.85 (6)	O10—O15—OW2^xiii	77.02 (7)
O13—Si4—Sr1	139.54 (7)	OW2^xi—O15—OW2^xiii	96.31 (7)
O1—Si4—Sr1	65.82 (6)	O5^iv—O15—OW2^xiii	123.77 (7)
O14—Si4—Sr1	114.64 (6)	O15^xv—O15—OW2^xiii	56.73 (6)
Na1^xiii—Si4—Sr1	72.65 (3)	O9^viii—O15—OW2^xiii	69.52 (5)
Na2—Si4—Sr1	62.42 (2)	Si7—O16—Si5^iii	145.32 (12)
O15—Si5—O10	115.18 (10)	Si7—O16—O10^iii	173.78 (11)
O15—Si5—O16^xii	113.91 (10)	Si5^iii—O16—O10^iii	37.92 (6)
O10—Si5—O16^xii	103.94 (10)	Si7—O16—O2	35.40 (6)
O15—Si5—O6	109.86 (10)	Si5^iii—O16—O2	148.90 (10)
O10—Si5—O6	106.12 (9)	O10^iii—O16—O2	147.11 (9)
O16^xii—Si5—O6	107.21 (9)	Si7—O16—O6^iii	125.64 (9)
O15—Si5—Na3	49.70 (7)	Si5^iii—O16—O6^iii	36.63 (5)
O10—Si5—Na3	108.51 (8)	O10^iii—O16—O6^iii	60.33 (6)
O16^xii—Si5—Na3	147.52 (7)	O2—O16—O6^iii	112.50 (8)
O6—Si5—Na3	64.93 (7)	Si7—O16—O8	35.07 (5)
O15—Si5—Na4^xi	37.33 (7)	Si5^iii—O16—O8	145.00 (11)
O10—Si5—Na4^xi	79.47 (7)	O10^iii—O16—O8	138.71 (9)
O16^xii—Si5—Na4^xi	115.74 (7)	O2—O16—O8	59.66 (6)
O6—Si5—Na4^xi	133.98 (7)	O6^iii—O16—O8	157.15 (8)
Na3—Si5—Na4^xi	69.98 (3)	Si7—O16—O11	33.56 (6)
O15—Si5—Sr2^iv	27.28 (6)	Si5^iii—O16—O11	111.80 (9)
O10—Si5—Sr2^iv	136.61 (7)	O10^iii—O16—O11	149.29 (9)
O16^xii—Si5—Sr2^iv	89.28 (6)	O2—O16—O11	58.88 (6)
O6—Si5—Sr2^iv	108.98 (6)	O6^iii—O16—O11	98.67 (7)
Na3—Si5—Sr2^iv	66.19 (3)	O8—O16—O11	58.58 (6)
Na4^xi—Si5—Sr2^iv	57.84 (2)	Si7—O16—O15^iii	118.58 (9)
O17—Si6—O13^ii	116.59 (10)	Si5^iii—O16—O15^iii	32.40 (6)
O17—Si6—O18	112.39 (10)	O10^iii—O16—O15^iii	61.84 (7)
O13^ii—Si6—O18	106.15 (9)	O2—O16—O15^iii	146.08 (9)
O17—Si6—O3	113.45 (9)	O6^iii—O16—O15^iii	59.38 (6)
O13^ii—Si6—O3	102.84 (10)	O8—O16—O15^iii	113.62 (8)
O18—Si6—O3	104.21 (9)	O11—O16—O15^iii	88.60 (7)
O17—Si6—Na1^xiv	39.50 (6)	Si7—O16—O7^iii	74.20 (7)
O13^ii—Si6—Na1^xiv	106.93 (8)	Si5^iii—O16—O7^iii	79.97 (7)
O18—Si6—Na1^xiv	80.37 (7)	O10^iii—O16—O7^iii	111.67 (7)
O3—Si6—Na1^xiv	147.27 (7)	O2—O16—O7^iii	71.98 (6)
O17—Si6—Na2^ii	38.61 (6)	O6^iii—O16—O7^iii	51.49 (5)
O13^ii—Si6—Na2^ii	81.22 (7)	O8—O16—O7^iii	107.23 (7)
O18—Si6—Na2^ii	142.23 (7)	O11—O16—O7^iii	50.40 (5)
O3—Si6—Na2^ii	110.19 (6)	O15^iii—O16—O7^iii	79.95 (6)
Na1^xiv—Si6—Na2^ii	62.28 (2)	Si7—O16—OW4^ii	100.22 (9)
O17—Si6—Sr1	28.05 (6)	Si5^iii—O16—OW4^ii	106.85 (9)
O13^ii—Si6—Sr1	139.58 (7)	O10^iii—O16—OW4^ii	74.08 (7)
O18—Si6—Sr1	108.07 (6)	O2—O16—OW4^ii	100.96 (9)
O3—Si6—Sr1	89.02 (6)	O6^iii—O16—OW4^ii	133.69 (8)
Na1^xiv—Si6—Sr1	59.34 (2)	O8—O16—OW4^ii	68.34 (7)
Na2^ii—Si6—Sr1	58.52 (2)	O11—O16—OW4^ii	126.39 (8)
O16—Si7—O2	109.30 (9)	O15^iii—O16—OW4^ii	106.76 (9)
O16—Si7—O11	113.03 (11)	O7^iii—O16—OW4^ii	172.93 (9)
O2—Si7—O11	108.15 (9)	Si7—O16—Sr2	83.06 (7)
O16—Si7—O8	110.26 (9)	Si5^iii—O16—Sr2	67.12 (6)
O2—Si7—O8	108.45 (10)	O10^iii—O16—Sr2	96.63 (7)
O11—Si7—O8	107.54 (9)	O2—O16—Sr2	114.87 (6)
O19—Si8—O18^iii	115.89 (10)	O6^iii—O16—Sr2	82.70 (6)
O19—Si8—O14^iii	112.97 (10)	O8—O16—Sr2	82.23 (6)
O18^iii—Si8—O14^iii	107.77 (10)	O11—O16—Sr2	56.26 (5)
O19—Si8—O4	114.77 (10)	O15^iii—O16—Sr2	35.81 (4)
O18^iii—Si8—O4	99.13 (9)	O7^iii—O16—Sr2	72.33 (4)
O14^iii—Si8—O4	104.92 (9)	OW4^ii—O16—Sr2	111.72 (8)
O19—Si8—Na1^ii	44.83 (7)	Si6—O17—Na2^ii	116.45 (9)
O18^iii—Si8—Na1^ii	127.70 (7)	Si6—O17—Na1^xiv	115.17 (9)
O14^iii—Si8—Na1^ii	68.41 (7)	Na2^ii—O17—Na1^xiv	95.27 (7)
O4—Si8—Na1^ii	132.94 (7)	Si6—O17—Sr1	134.69 (9)
O19—Si8—Na5	136.01 (7)	Na2^ii—O17—Sr1	92.85 (6)
O18^iii—Si8—Na5	49.31 (6)	Na1^xiv—O17—Sr1	93.96 (6)
O14^iii—Si8—Na5	110.99 (8)	Si6—O17—O18	34.53 (6)
O4—Si8—Na5	50.15 (7)	Na2^ii—O17—O18	143.17 (8)
Na1^ii—Si8—Na5	176.87 (4)	Na1^xiv—O17—O18	87.02 (7)
O19—Si8—Na1^ix	42.41 (7)	Sr1—O17—O18	123.73 (7)
O18^iii—Si8—Na1^ix	77.04 (7)	Si6—O17—O3	34.07 (6)
O14^iii—Si8—Na1^ix	112.92 (7)	Na2^ii—O17—O3	113.50 (7)
O4—Si8—Na1^ix	141.36 (7)	Na1^xiv—O17—O3	144.73 (8)
Na1^ii—Si8—Na1^ix	59.94 (4)	Sr1—O17—O3	104.04 (7)
Na5—Si8—Na1^ix	118.28 (3)	O18—O17—O3	57.74 (6)
Si1—O1—Si4	146.18 (11)	Si6—O17—O13^ii	32.23 (5)
Si1—O1—O12	161.15 (10)	Na2^ii—O17—O13^ii	86.96 (6)
Si4—O1—O12	35.91 (6)	Na1^xiv—O17—O13^ii	108.28 (8)
Si1—O1—O2	35.81 (6)	Sr1—O17—O13^ii	157.69 (8)
Si4—O1—O2	114.92 (9)	O18—O17—O13^ii	57.80 (6)
O12—O1—O2	150.06 (8)	O3—O17—O13^ii	56.30 (6)
Si1—O1—O4	35.33 (6)	Si6—O17—O17^i	145.79 (11)
Si4—O1—O4	167.41 (11)	Na2^ii—O17—O17^i	44.56 (5)
O12—O1—O4	149.84 (8)	Na1^xiv—O17—O17^i	96.73 (8)
O2—O1—O4	60.05 (6)	Sr1—O17—O17^i	48.29 (4)
Si1—O1—O14	111.32 (9)	O18—O17—O17^i	171.25 (6)
Si4—O1—O14	36.61 (6)	O3—O17—O17^i	117.94 (8)
O12—O1—O14	62.61 (6)	O13^ii—O17—O17^i	127.61 (6)
O2—O1—O14	88.66 (7)	Si6—O17—O12^ii	83.12 (7)
O4—O1—O14	146.23 (8)	Na2^ii—O17—O12^ii	45.70 (4)
Si1—O1—O13	132.02 (10)	Na1^xiv—O17—O12^ii	82.26 (6)
Si4—O1—O13	35.76 (6)	Sr1—O17—O12^ii	137.22 (6)
O12—O1—O13	62.22 (7)	O18—O17—O12^ii	98.72 (6)
O2—O1—O13	96.82 (8)	O3—O17—O12^ii	103.00 (6)
O4—O1—O13	131.65 (9)	O13^ii—O17—O12^ii	51.13 (5)
O14—O1—O13	59.04 (6)	O17^i—O17—O12^ii	89.64 (4)
Si1—O1—O3	34.61 (6)	Si6—O17—O1	73.14 (7)
Si4—O1—O3	130.33 (9)	Na2^ii—O17—O1	137.24 (7)
O12—O1—O3	126.55 (9)	Na1^xiv—O17—O1	119.09 (7)
O2—O1—O3	60.75 (6)	Sr1—O17—O1	62.25 (4)
O4—O1—O3	59.11 (6)	O18—O17—O1	68.51 (6)
O14—O1—O3	95.94 (7)	O3—O17—O1	50.07 (5)
O13—O1—O3	148.27 (8)	O13^ii—O17—O1	103.67 (7)
Si1—O1—O19	83.37 (7)	O17^i—O17—O1	102.80 (5)
Si4—O1—O19	129.37 (9)	O12^ii—O17—O1	153.07 (7)
O12—O1—O19	94.49 (7)	Si6—O17—O19^i	143.28 (9)
O2—O1—O19	115.37 (7)	Na2^ii—O17—O19^i	97.45 (6)
O4—O1—O19	55.72 (6)	Na1^xiv—O17—O19^i	43.68 (5)
O14—O1—O19	149.01 (9)	Sr1—O17—O19^i	50.31 (4)
O13—O1—O19	130.78 (8)	O18—O17—O19^i	108.89 (7)
O3—O1—O19	80.84 (6)	O3—O17—O19^i	141.73 (7)
Si1—O1—Sr1	116.45 (8)	O13^ii—O17—O19^i	151.79 (8)
Si4—O1—Sr1	85.83 (7)	O17^i—O17—O19^i	69.41 (5)
O12—O1—Sr1	51.04 (5)	O12^ii—O17—O19^i	114.87 (6)
O2—O1—Sr1	150.36 (7)	O1—O17—O19^i	91.95 (6)
O4—O1—Sr1	103.51 (6)	Si8^xii—O18—Si6	136.70 (11)
O14—O1—Sr1	98.31 (7)	Si8^xii—O18—O4^xii	40.72 (6)
O13—O1—Sr1	111.52 (7)	Si6—O18—O4^xii	176.78 (10)
O3—O1—Sr1	89.78 (6)	Si8^xii—O18—Na5^xii	101.56 (8)
O19—O1—Sr1	51.12 (4)	Si6—O18—Na5^xii	121.18 (9)
Si1—O1—O17	85.28 (7)	O4^xii—O18—Na5^xii	61.09 (6)
Si4—O1—O17	95.73 (8)	Si8^xii—O18—O3	132.38 (9)
O12—O1—O17	76.21 (6)	Si6—O18—O3	37.99 (6)
O2—O1—O17	109.08 (7)	O4^xii—O18—O3	140.73 (9)
O4—O1—O17	96.85 (7)	Na5^xii—O18—O3	101.07 (8)
O14—O1—O17	80.77 (6)	Si8^xii—O18—O13^ii	158.64 (11)
O13—O1—O17	131.48 (8)	Si6—O18—O13^ii	36.75 (5)
O3—O1—O17	51.29 (6)	O4^xii—O18—O13^ii	146.46 (8)
O19—O1—O17	73.20 (6)	Na5^xii—O18—O13^ii	92.10 (7)
Sr1—O1—O17	44.89 (4)	O3—O18—O13^ii	58.90 (6)
Si1—O1—O18	74.14 (7)	Si8^xii—O18—O14	36.16 (6)
Si4—O1—O18	82.39 (7)	Si6—O18—O14	115.92 (8)
O12—O1—O18	90.16 (6)	O4^xii—O18—O14	60.87 (6)
O2—O1—O18	75.49 (6)	Na5^xii—O18—O14	106.81 (7)
O4—O1—O18	106.16 (7)	O3—O18—O14	96.99 (7)
O14—O1—O18	49.14 (5)	O13^ii—O18—O14	152.36 (8)
O13—O1—O18	107.66 (7)	Si8^xii—O18—O17	104.89 (9)
O3—O1—O18	47.97 (5)	Si6—O18—O17	33.08 (6)
O19—O1—O18	115.58 (6)	O4^xii—O18—O17	144.98 (9)
Sr1—O1—O18	87.37 (5)	Na5^xii—O18—O17	153.50 (8)
O17—O1—O18	45.93 (4)	O3—O18—O17	61.57 (6)
Si1—O2—Si7	145.98 (10)	O13^ii—O18—O17	62.11 (6)
Si1—O2—O11	161.40 (11)	O14—O18—O17	95.67 (7)
Si7—O2—O11	35.97 (6)	Si8^xii—O18—O19^xii	31.38 (6)
Si1—O2—O1	35.81 (6)	Si6—O18—O19^xii	116.11 (9)
Si7—O2—O1	164.76 (11)	O4^xii—O18—O19^xii	62.59 (7)
O11—O2—O1	150.90 (8)	Na5^xii—O18—O19^xii	119.75 (7)
Si1—O2—O8	134.97 (10)	O3—O18—O19^xii	136.81 (8)
Si7—O2—O8	35.94 (6)	O13^ii—O18—O19^xii	127.26 (9)
O11—O2—O8	59.84 (6)	O14—O18—O19^xii	59.90 (6)
O1—O2—O8	129.02 (9)	O17—O18—O19^xii	83.50 (7)
Si1—O2—O16	112.40 (8)	Si8^xii—O18—OW3^xii	106.71 (9)
Si7—O2—O16	35.31 (5)	Si6—O18—OW3^xii	107.97 (8)
O11—O2—O16	61.74 (7)	O4^xii—O18—OW3^xii	75.24 (7)
O1—O2—O16	146.97 (8)	Na5^xii—O18—OW3^xii	45.85 (6)
O8—O2—O16	60.66 (6)	O3—O18—OW3^xii	119.08 (8)
Si1—O2—O4	35.65 (6)	O13^ii—O18—OW3^xii	71.43 (7)
Si7—O2—O4	131.27 (10)	O14—O18—OW3^xii	136.11 (7)
O11—O2—O4	125.81 (9)	O17—O18—OW3^xii	122.37 (8)
O1—O2—O4	60.44 (7)	O19^xii—O18—OW3^xii	100.39 (8)
O8—O2—O4	154.69 (8)	Si8^xii—O18—OW1^xii	88.45 (8)
O16—O2—O4	98.65 (7)	Si6—O18—OW1^xii	92.03 (8)
Si1—O2—O3	34.36 (5)	O4^xii—O18—OW1^xii	89.82 (7)
Si7—O2—O3	114.45 (8)	Na5^xii—O18—OW1^xii	97.94 (7)
O11—O2—O3	148.65 (8)	O3—O18—OW1^xii	128.73 (8)
O1—O2—O3	60.45 (6)	O13^ii—O18—OW1^xii	73.31 (7)
O8—O2—O3	102.70 (7)	O14—O18—OW1^xii	122.04 (8)
O16—O2—O3	87.19 (7)	O17—O18—OW1^xii	81.19 (7)
O4—O2—O3	59.13 (6)	O19^xii—O18—OW1^xii	62.26 (6)
Si1—O2—Na5	78.83 (6)	OW3^xii—O18—OW1^xii	53.22 (7)
Si7—O2—Na5	108.75 (9)	Si8^xii—O18—O1	83.05 (7)
O11—O2—Na5	84.22 (6)	Si6—O18—O1	70.39 (6)
O1—O2—Na5	86.47 (6)	O4^xii—O18—O1	106.59 (7)
O8—O2—Na5	143.05 (8)	Na5^xii—O18—O1	120.09 (7)
O16—O2—Na5	96.33 (7)	O3—O18—O1	49.38 (5)
O4—O2—Na5	45.87 (5)	O13^ii—O18—O1	104.33 (6)
O3—O2—Na5	104.63 (6)	O14—O18—O1	48.79 (5)
Si1—O3—Si6	130.68 (11)	O17—O18—O1	65.56 (5)
Si1—O3—O13^ii	166.22 (10)	O19^xii—O18—O1	94.72 (6)
Si6—O3—O13^ii	38.30 (6)	OW3^xii—O18—O1	163.56 (9)
Si1—O3—O18	105.34 (8)	OW1^xii—O18—O1	141.96 (8)
Si6—O3—O18	37.79 (6)	Si8—O19—Na1^ii	107.80 (9)
O13^ii—O3—O18	60.89 (6)	Si8—O19—Na1^ix	112.62 (10)
Si1—O3—O4	36.17 (5)	Na1^ii—O19—Na1^ix	85.67 (7)
Si6—O3—O4	149.30 (10)	Si8—O19—O14^iii	34.26 (6)
O13^ii—O3—O4	157.35 (9)	Na1^ii—O19—O14^iii	73.76 (6)
O18—O3—O4	140.80 (8)	Na1^ix—O19—O14^iii	113.74 (8)
Si1—O3—O1	34.49 (6)	Si8—O19—Sr1	146.93 (10)
Si6—O3—O1	97.45 (9)	Na1^ii—O19—Sr1	87.61 (6)
O13^ii—O3—O1	135.73 (9)	Na1^ix—O19—Sr1	97.24 (7)
O18—O3—O1	82.65 (7)	O14^iii—O19—Sr1	141.83 (8)
O4—O3—O1	60.06 (6)	Si8—O19—O4	33.51 (6)
Si1—O3—O2	34.25 (6)	Na1^ii—O19—O4	124.77 (8)
Si6—O3—O2	129.11 (9)	Na1^ix—O19—O4	135.50 (9)
O13^ii—O3—O2	139.12 (8)	O14^iii—O19—O4	57.82 (6)
O18—O3—O2	91.94 (7)	Sr1—O19—O4	113.87 (7)
O4—O3—O2	59.71 (6)	Si8—O19—O18^iii	32.72 (6)
O1—O3—O2	58.80 (6)	Na1^ii—O19—O18^iii	120.14 (8)
Si1—O3—O17	112.28 (9)	Na1^ix—O19—O18^iii	82.75 (6)
Si6—O3—O17	32.48 (5)	O14^iii—O19—O18^iii	58.63 (7)
O13^ii—O3—O17	62.44 (7)	Sr1—O19—O18^iii	152.05 (8)
O18—O3—O17	60.69 (6)	O4—O19—O18^iii	54.78 (6)
O4—O3—O17	117.41 (8)	Si8—O19—O12^i	148.24 (10)
O1—O3—O17	78.63 (7)	Na1^ii—O19—O12^i	96.54 (7)
O2—O3—O17	132.59 (8)	Na1^ix—O19—O12^i	48.12 (5)
Si1—O3—OW3^ii	110.27 (10)	O14^iii—O19—O12^i	160.92 (8)
Si6—O3—OW3^ii	116.60 (9)	Sr1—O19—O12^i	51.19 (4)
O13^ii—O3—OW3^ii	83.12 (8)	O4—O19—O12^i	137.20 (8)
O18—O3—OW3^ii	141.99 (8)	O18^iii—O19—O12^i	116.59 (7)
O4—O3—OW3^ii	76.71 (7)	Si8—O19—O1	85.52 (8)
O1—O3—OW3^ii	135.15 (8)	Na1^ii—O19—O1	138.66 (8)
O2—O3—OW3^ii	110.15 (9)	Na1^ix—O19—O1	125.98 (7)
O17—O3—OW3^ii	114.83 (9)	O14^iii—O19—O1	108.70 (8)
Si1—O3—Sr1	79.15 (7)	Sr1—O19—O1	64.84 (5)
Si6—O3—Sr1	67.30 (6)	O4—O19—O1	53.04 (6)
O13^ii—O3—Sr1	98.13 (7)	O18^iii—O19—O1	92.45 (7)
O18—O3—Sr1	82.73 (6)	O12^i—O19—O1	89.51 (6)
O4—O3—Sr1	82.00 (6)	Si8—O19—OW1	95.63 (9)
O1—O3—Sr1	49.94 (5)	Na1^ii—O19—OW1	143.97 (9)
O2—O3—Sr1	108.66 (6)	Na1^ix—O19—OW1	59.77 (6)
O17—O3—Sr1	36.31 (4)	O14^iii—O19—OW1	127.14 (9)
OW3^ii—O3—Sr1	116.38 (7)	Sr1—O19—OW1	87.11 (7)
Si1—O4—Si8	128.83 (13)	O4—O19—OW1	89.68 (8)
Si1—O4—O18^iii	145.59 (10)	O18^iii—O19—OW1	68.64 (7)
Si8—O4—O18^iii	40.16 (6)	O12^i—O19—OW1	53.73 (7)
Si1—O4—Na5	118.25 (9)	O1—O19—OW1	68.41 (6)
Si8—O4—Na5	100.21 (8)	Si8—O19—O17^i	142.27 (9)
O18^iii—O4—Na5	60.29 (6)	Na1^ii—O19—O17^i	42.12 (5)
Si1—O4—O3	36.10 (5)	Na1^ix—O19—O17^i	90.50 (6)
Si8—O4—O3	112.46 (10)	O14^iii—O19—O17^i	109.86 (7)
O18^iii—O4—O3	151.78 (10)	Sr1—O19—O17^i	45.51 (4)
Na5—O4—O3	147.25 (8)	O4—O19—O17^i	133.99 (7)
Si1—O4—O14^iii	134.43 (10)	O18^iii—O19—O17^i	161.79 (7)
Si8—O4—O14^iii	37.34 (5)	O12^i—O19—O17^i	69.14 (6)
O18^iii—O4—O14^iii	62.24 (7)	O1—O19—O17^i	105.14 (7)
Na5—O4—O14^iii	107.24 (8)	OW1—O19—O17^i	122.04 (8)
O3—O4—O14^iii	100.45 (7)	Na2—OW1—Na1	83.36 (8)
Si1—O4—O2	35.46 (6)	Na2—OW1—O12^i	53.07 (7)
Si8—O4—O2	161.25 (12)	Na1—OW1—O12^i	88.70 (9)
O18^iii—O4—O2	141.11 (8)	Na2—OW1—Na1^ix	100.41 (9)
Na5—O4—O2	87.02 (7)	Na1—OW1—Na1^ix	86.09 (8)
O3—O4—O2	61.16 (6)	O12^i—OW1—Na1^ix	48.03 (5)
O14^iii—O4—O2	155.43 (8)	Na2—OW1—OW3	125.43 (10)
Si1—O4—O1	35.15 (6)	Na1—OW1—OW3	116.94 (9)
Si8—O4—O1	101.76 (10)	O12^i—OW1—OW3	154.35 (10)
O18^iii—O4—O1	110.71 (8)	Na1^ix—OW1—OW3	129.17 (10)
Na5—O4—O1	111.25 (7)	Na2—OW1—O19	100.54 (9)
O3—O4—O1	60.83 (6)	Na1—OW1—O19	134.59 (10)
O14^iii—O4—O1	128.32 (9)	O12^i—OW1—O19	61.01 (6)
O2—O4—O1	59.51 (7)	Na1^ix—OW1—O19	48.56 (5)
Si1—O4—O19	97.43 (10)	OW3—OW1—O19	97.59 (9)
Si8—O4—O19	31.72 (6)	Na2—OW1—O14^vi	127.48 (9)
O18^iii—O4—O19	62.63 (7)	Na1—OW1—O14^vi	60.84 (6)
Na5—O4—O19	119.05 (7)	O12^i—OW1—O14^vi	147.10 (10)
O3—O4—O19	89.70 (8)	Na1^ix—OW1—O14^vi	112.90 (8)
O14^iii—O4—O19	60.31 (6)	OW3—OW1—O14^vi	57.57 (7)
O2—O4—O19	130.20 (9)	O19—OW1—O14^vi	131.97 (10)
O1—O4—O19	71.23 (7)	Na2—OW1—O18^iii	148.69 (9)
Si1—O4—OW3^ii	90.50 (8)	Na1—OW1—O18^iii	122.10 (9)
Si8—O4—OW3^ii	91.68 (8)	O12^i—OW1—O18^iii	105.47 (7)
O18^iii—O4—OW3^ii	118.32 (8)	Na1^ix—OW1—O18^iii	66.86 (6)
Na5—O4—OW3^ii	127.24 (9)	OW3—OW1—O18^iii	62.51 (8)
O3—O4—OW3^ii	56.47 (7)	O19—OW1—O18^iii	49.10 (6)
O14^iii—O4—OW3^ii	57.74 (6)	O14^vi—OW1—O18^iii	83.32 (8)
O2—O4—OW3^ii	97.69 (7)	Na2—OW1—Sr1	59.27 (5)
O1—O4—OW3^ii	116.21 (8)	Na1—OW1—Sr1	125.43 (9)
O19—O4—OW3^ii	97.37 (8)	O12^i—OW1—Sr1	37.58 (4)
Si2—O5—Na3^iv	118.80 (10)	Na1^ix—OW1—Sr1	65.87 (5)
Si2—O5—Na3	98.65 (9)	OW3—OW1—Sr1	117.05 (8)
Na3^iv—O5—Na3	84.46 (7)	O19—OW1—Sr1	41.47 (4)
Si2—O5—Sr2	146.19 (10)	O14^vi—OW1—Sr1	172.68 (9)
Na3^iv—O5—Sr2	94.51 (7)	O18^iii—OW1—Sr1	89.70 (5)
Na3—O5—Sr2	89.61 (6)	Na4—OW2—Na3^xi	93.24 (8)
Si2—O5—O6	33.96 (6)	Na4—OW2—Na3	89.87 (7)
Na3^iv—O5—O6	120.63 (8)	Na3^xi—OW2—Na3	82.28 (7)
Na3—O5—O6	65.81 (6)	Na4—OW2—O5^viii	98.68 (9)
Sr2—O5—O6	132.64 (7)	Na3^xi—OW2—O5^viii	52.38 (6)
Si2—O5—O7	33.54 (6)	Na3—OW2—O5^viii	134.06 (9)
Na3^iv—O5—O7	87.13 (7)	Na4—OW2—OW4	123.27 (10)
Na3—O5—O7	107.94 (7)	Na3^xi—OW2—OW4	137.77 (10)
Sr2—O5—O7	162.45 (8)	Na3—OW2—OW4	114.94 (10)
O6—O5—O7	58.78 (6)	O5^viii—OW2—OW4	97.64 (9)
Si2—O5—O8	33.80 (6)	Na4—OW2—O15^xi	47.41 (5)
Na3^iv—O5—O8	138.76 (8)	Na3^xi—OW2—O15^xi	47.06 (5)
Na3—O5—O8	121.12 (8)	Na3—OW2—O15^xi	92.90 (7)
Sr2—O5—O8	115.52 (7)	O5^viii—OW2—O15^xi	63.24 (7)
O6—O5—O8	58.01 (6)	OW4—OW2—O15^xi	151.65 (10)
O7—O5—O8	55.76 (6)	Na4—OW2—O9^iv	47.23 (5)
Si2—O5—OW2^ii	98.52 (10)	Na3^xi—OW2—O9^iv	84.59 (7)
Na3^iv—O5—OW2^ii	59.07 (6)	Na3—OW2—O9^iv	42.71 (5)
Na3—O5—OW2^ii	143.52 (9)	O5^viii—OW2—O9^iv	126.01 (10)
Sr2—O5—OW2^ii	93.68 (7)	OW4—OW2—O9^iv	134.89 (9)
O6—O5—OW2^ii	130.48 (9)	O15^xi—OW2—O9^iv	63.47 (6)
O7—O5—OW2^ii	72.18 (7)	Na4—OW2—O6	126.29 (9)
O8—O5—OW2^ii	89.90 (8)	Na3^xi—OW2—O6	116.18 (8)
Si2—O5—O11	76.62 (8)	Na3—OW2—O6	54.58 (5)
Na3^iv—O5—O11	162.81 (8)	O5^viii—OW2—O6	135.01 (9)
Na3—O5—O11	101.41 (6)	OW4—OW2—O6	61.03 (8)
Sr2—O5—O11	69.60 (5)	O15^xi—OW2—O6	147.26 (8)
O6—O5—O11	76.26 (6)	O9^iv—OW2—O6	89.73 (7)
O7—O5—O11	106.01 (8)	Na4—OW2—O7^viii	148.96 (9)
O8—O5—O11	50.80 (5)	Na3^xi—OW2—O7^viii	72.13 (6)
OW2^ii—O5—O11	113.77 (8)	Na3—OW2—O7^viii	114.13 (8)
Si2—O5—O15^iv	160.58 (10)	O5^viii—OW2—O7^viii	50.60 (6)
Na3^iv—O5—O15^iv	47.76 (5)	OW4—OW2—O7^viii	65.65 (7)
Na3—O5—O15^iv	93.98 (7)	O15^xi—OW2—O7^viii	109.04 (7)
Sr2—O5—O15^iv	47.87 (4)	O9^iv—OW2—O7^viii	150.38 (8)
O6—O5—O15^iv	159.00 (8)	O6—OW2—O7^viii	84.61 (7)
O7—O5—O15^iv	127.88 (7)	Na4—OW2—O15^vi	44.37 (5)
O8—O5—O15^iv	142.98 (8)	Na3^xi—OW2—O15^vi	100.16 (8)
OW2^ii—O5—O15^iv	63.07 (7)	Na3—OW2—O15^vi	134.14 (8)
O11—O5—O15^iv	115.29 (7)	O5^viii—OW2—O15^vi	69.66 (6)
Si2—O5—O9^iv	131.74 (9)	OW4—OW2—O15^vi	93.90 (9)
Na3^iv—O5—O9^iv	89.13 (7)	O15^xi—OW2—O15^vi	60.73 (6)
Na3—O5—O9^iv	42.05 (4)	O9^iv—OW2—O15^vi	91.60 (7)
Sr2—O5—O9^iv	47.56 (4)	O6—OW2—O15^vi	143.59 (8)
O6—O5—O9^iv	98.58 (7)	O7^viii—OW2—O15^vi	109.99 (7)
O7—O5—O9^iv	149.99 (8)	Na4—OW2—Sr2^viii	58.33 (5)
O8—O5—O9^iv	131.87 (7)	Na3^xi—OW2—Sr2^viii	64.14 (5)
OW2^ii—O5—O9^iv	129.68 (9)	Na3—OW2—Sr2^viii	129.88 (8)
O11—O5—O9^iv	84.80 (6)	O5^viii—OW2—Sr2^viii	40.56 (5)
O15^iv—O5—O9^iv	66.70 (6)	OW4—OW2—Sr2^viii	114.93 (8)
Si2—O6—Si5	133.86 (10)	O15^xi—OW2—Sr2^viii	36.99 (4)
Si2—O6—O8	37.52 (6)	O9^iv—OW2—Sr2^viii	95.47 (6)
Si5—O6—O8	154.63 (10)	O6—OW2—Sr2^viii	174.79 (8)
Si2—O6—O10	170.34 (10)	O7^viii—OW2—Sr2^viii	90.67 (5)
Si5—O6—O10	36.60 (5)	O15^vi—OW2—Sr2^viii	36.88 (4)
O8—O6—O10	148.76 (9)	Na5—OW3—O3^viii	156.99 (12)
Si2—O6—O15	110.73 (9)	Na5—OW3—OW1	112.89 (10)
Si5—O6—O15	34.14 (6)	O3^viii—OW3—OW1	80.14 (9)
O8—O6—O15	147.91 (8)	Na5—OW3—O14^vi	118.65 (11)
O10—O6—O15	61.83 (6)	O3^viii—OW3—O14^vi	83.60 (7)
Si2—O6—O16^xii	113.21 (9)	OW1—OW3—O14^vi	66.44 (8)
Si5—O6—O16^xii	36.16 (6)	Na5—OW3—OW4^vi	46.73 (7)
O8—O6—O16^xii	118.72 (8)	O3^viii—OW3—OW4^vi	139.47 (11)
O10—O6—O16^xii	58.37 (6)	OW1—OW3—OW4^vi	128.32 (12)
O15—O6—O16^xii	61.19 (6)	O14^vi—OW3—OW4^vi	83.90 (10)
Si2—O6—O7	36.17 (5)	Na5—OW3—O18^iii	50.10 (6)
Si5—O6—O7	102.70 (8)	O3^viii—OW3—O18^iii	143.69 (12)
O8—O6—O7	57.51 (6)	OW1—OW3—O18^iii	64.26 (7)
O10—O6—O7	135.18 (8)	O14^vi—OW3—O18^iii	88.34 (8)
O15—O6—O7	94.18 (7)	OW4^vi—OW3—O18^iii	74.01 (9)
O16^xii—O6—O7	77.05 (6)	Na5—OW3—O4^viii	145.63 (13)
Si2—O6—O5	32.54 (6)	O3^viii—OW3—O4^viii	46.82 (5)
Si5—O6—O5	126.03 (10)	OW1—OW3—O4^viii	90.28 (8)
O8—O6—O5	61.47 (7)	O14^vi—OW3—O4^viii	46.66 (5)
O10—O6—O5	147.63 (9)	OW4^vi—OW3—O4^viii	99.08 (9)
O15—O6—O5	92.83 (8)	O18^iii—OW3—O4^viii	134.93 (9)
O16^xii—O6—O5	128.96 (8)	Na5—OW3—O13^vi	75.72 (7)
O7—O6—O5	60.88 (6)	O3^viii—OW3—O13^vi	127.28 (9)
Si2—O6—Na3	86.65 (8)	OW1—OW3—O13^vi	67.19 (8)
Si5—O6—Na3	83.49 (7)	O14^vi—OW3—O13^vi	46.15 (5)
O8—O6—Na3	114.20 (8)	OW4^vi—OW3—O13^vi	61.85 (9)
O10—O6—Na3	92.58 (7)	O18^iii—OW3—O13^vi	45.06 (5)
O15—O6—Na3	52.31 (5)	O4^viii—OW3—O13^vi	91.77 (7)
O16^xii—O6—Na3	113.27 (7)	Na5^xiii—OW4—OW2	105.69 (12)
O7—O6—Na3	101.49 (7)	Na5^xiii—OW4—OW3^xiii	47.79 (8)
O5—O6—Na3	55.07 (6)	OW2—OW4—OW3^xiii	125.62 (14)
Si2—O6—OW4	112.00 (9)	Na5^xiii—OW4—O11	174.74 (17)
Si5—O6—OW4	113.49 (9)	OW2—OW4—O11	69.71 (9)
O8—O6—OW4	77.91 (7)	OW3^xiii—OW4—O11	132.51 (10)
O10—O6—OW4	77.20 (7)	Na5^xiii—OW4—O6	106.64 (13)
O15—O6—OW4	132.94 (8)	OW2—OW4—O6	61.80 (9)
O16^xii—O6—OW4	116.15 (9)	OW3^xiii—OW4—O6	80.38 (10)
O7—O6—OW4	132.44 (8)	O11—OW4—O6	69.13 (7)
O5—O6—OW4	113.45 (8)	Na5^xiii—OW4—O16^viii	93.35 (9)
Na3—O6—OW4	112.01 (9)	OW2—OW4—O16^viii	74.07 (9)
Si2—O6—OW2	113.28 (9)	OW3^xiii—OW4—O16^viii	137.74 (11)
Si5—O6—OW2	97.50 (8)	O11—OW4—O16^viii	87.84 (10)
O8—O6—OW2	107.47 (7)	O6—OW4—O16^viii	134.86 (14)
O10—O6—OW2	73.78 (7)	Na5^xiii—OW4—O8^viii	50.21 (6)
O15—O6—OW2	88.29 (7)	OW2—OW4—O8^viii	75.47 (8)
O16^xii—O6—OW2	130.94 (7)	OW3^xiii—OW4—O8^viii	98.00 (9)
O7—O6—OW2	147.34 (8)	O11—OW4—O8^viii	129.01 (13)
O5—O6—OW2	86.49 (7)	O6—OW4—O8^viii	123.21 (12)
Na3—O6—OW2	55.48 (6)	O16^viii—OW4—O8^viii	46.65 (6)
OW4—O6—OW2	57.17 (8)	Na5^xiii—OW4—O13	77.07 (11)
Si2—O7—Si3	137.95 (11)	OW2—OW4—O13	170.29 (14)
Si2—O7—Na5^xii	101.78 (7)	OW3^xiii—OW4—O13	63.21 (9)
Si3—O7—Na5^xii	119.81 (9)	O11—OW4—O13	107.90 (9)
Si2—O7—O8	39.96 (6)	O6—OW4—O13	126.83 (11)
Si3—O7—O8	170.91 (11)	O16^viii—OW4—O13	96.60 (11)
Na5^xii—O7—O8	61.99 (6)	O8^viii—OW4—O13	100.22 (10)

Symmetry codes: (i) −x, y, −z+1/2; (ii) x, y−1, z; (iii) x, −y, z+1/2; (iv) −x+1, −y, −z; (v) −x+1, y, −z+1/2; (vi) x, −y+1, z+1/2; (vii) −x, y+1, −z+1/2; (viii) x, y+1, z; (ix) −x, −y+1, −z+1; (x) −x, −y+2, −z+1; (xi) −x+1, −y+1, −z; (xii) x, −y, z−1/2; (xiii) x, −y+1, z−1/2; (xiv) −x, y−1, −z+1/2; (xv) −x+1, y, −z−1/2.