High-pressure synthesis and crystal structure of the strontium tungstate Sr₃W₂O₉

The strontium tungstate compound Sr₃W₂O₉ was prepared by a high-pressure synthesis technique. The crystal structure was determined by single-crystal X-ray diffraction and transmission electron microscopy. The structure was found to be a hettotype structure of the high-pressure phase of Ba₃W₂O₉, which has corner-sharing octa­hedra with a trigonal symmetry. Sr₃W₂O₉ has a monoclinic unit cell of C2/c symmetry. One characteristic of the structure is the breaking of the threefold rotation symmetry existing in the high-pressure phase of Ba₃W₂O₉. The substitution of Sr at the Ba site results in a significant shortening of the inter­layer distances of the [AO₃] layers (A = Ba, Sr) and causes a distortion in the crystal structure. In Sr₃W₂O₉, there is an off-centre displacement of W⁶⁺ ions in the WO₆ octa­hedra. Such a displacement is also observed in the high-pressure phase of Ba₃W₂O₉.

Computing details

For both structures, data collection: APEX2 (Bruker, 2015); cell refinement: SAINT (Bruker, 2015); data reduction: SAINT (Bruker, 2015); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007); program(s) used to refine structure: JANA2006 (Petříček et al., 2014); molecular graphics: VESTA (Momma & Izumi, 2011).

Strontium tungstate (298K)

Crystal data

Sr3W2O9	F(000) = 1336
Mr = 774.6	Dx = 7.170 Mg m^−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 3874 reflections
a = 9.637 (3) Å	θ = 3.0–30.5°
b = 5.564 (5) Å	µ = 54.12 mm^−1
c = 13.763 (2) Å	T = 298 K
β = 103.497 (6)°	Prism, colourless
V = 717.6 (7) Å^3	0.12 × 0.06 × 0.06 mm
Z = 4

Data collection

Bruker CCD diffractometer	1086 independent reflections
Radiation source: X-ray tube	901 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.022
φ and ω scans	θmax = 30.5°, θmin = 3.0°
Absorption correction: multi-scan (SADABS; Bruker, 2015)	h = −13→9
Tmin = 0.089, Tmax = 0.230	k = −7→7
3874 measured reflections	l = −19→19

Refinement

Refinement on F^2	0 constraints
R[F > 3σ(F)] = 0.018	Weighting scheme based on measured s.u.'s w = 1/(σ^2(I) + 0.0004I^2)
wR(F) = 0.048	(Δ/σ)max = 0.011
S = 1.18	Δρmax = 0.67 e Å^−3
1086 reflections	Δρmin = −0.81 e Å^−3
45 parameters	Extinction correction: B-C type 1 Gaussian isotropic (Becker & Coppens, 1974)
0 restraints	Extinction coefficient: 93 (7)

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

	x	y	z	Uiso*/Ueq
Sr1	0	0.24688 (17)	0.25	0.0091 (7)
Sr2	0.1044 (3)	0.25091 (14)	0.56530 (4)	0.0108 (5)
W1	0.30110 (8)	0.24703 (4)	0.155199 (12)	0.0058 (2)
O1a	0	0.7663 (13)	0.25	0.017 (3)*
O1b	0.2409 (6)	0.4662 (9)	0.2554 (4)	0.0154 (13)*
O2a	0.1146 (11)	0.2148 (11)	0.0910 (6)	0.0100 (14)*
O2b	0.1561 (10)	0.0113 (10)	0.4090 (4)	0.0075 (12)*
O2c	0.3735 (10)	0.0197 (10)	0.0882 (4)	0.0095 (12)*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sr1	0.0085 (14)	0.0080 (13)	0.0096 (3)	0	−0.0003 (13)	0
Sr2	0.0111 (10)	0.0098 (9)	0.01092 (18)	0.0004 (3)	0.0019 (9)	0.0008 (2)
W1	0.0054 (5)	0.0064 (5)	0.00503 (11)	−0.00004 (14)	0.0001 (4)	0.00004 (12)

Geometric parameters (Å, º)

Sr1—Sr2	4.2197 (14)	Sr2—Sr2^iii	3.659 (4)
Sr1—Sr2^i	4.2197 (14)	Sr2—Sr2^iv	3.643 (4)
Sr1—Sr2^ii	4.059 (3)	Sr2—W1^i	4.353 (3)
Sr1—Sr2^iii	4.042 (4)	Sr2—W1^x	4.380 (4)
Sr1—Sr2^iv	4.059 (4)	Sr2—W1^xi	4.353 (3)
Sr1—Sr2^v	4.059 (3)	Sr2—W1^ii	3.7406 (13)
Sr1—Sr2^vi	4.042 (4)	Sr2—W1^xiii	3.430 (3)
Sr1—Sr2^vii	4.059 (4)	Sr2—W1^xiv	3.421 (4)
Sr1—W1	3.4481 (17)	Sr2—W1^xv	3.440 (4)
Sr1—W1^viii	3.456 (4)	Sr2—O1a^iv	2.9457 (18)
Sr1—W1^ix	3.457 (4)	Sr2—O1b^ii	2.838 (5)
Sr1—W1^i	3.4481 (17)	Sr2—O1b^xv	3.074 (5)
Sr1—W1^x	3.456 (4)	Sr2—O2a^i	2.649 (8)
Sr1—W1^xi	3.457 (4)	Sr2—O2a^xiv	2.615 (7)
Sr1—O1a^xii	2.676 (7)	Sr2—O2a^xv	2.992 (8)
Sr1—O1a	2.888 (8)	Sr2—O2b	2.675 (7)
Sr1—O1b	2.608 (6)	Sr2—O2b^ii	2.614 (9)
Sr1—O1b^viii	2.961 (6)	Sr2—O2b^iii	2.993 (9)
Sr1—O1b^i	2.608 (6)	Sr2—O2c^xi	2.640 (6)
Sr1—O1b^x	2.961 (6)	Sr2—O2c^xiii	2.651 (9)
Sr1—O2a	2.680 (10)	Sr2—O2c^xiv	2.948 (9)
Sr1—O2a^i	2.680 (10)	W1—O1a^xvi	2.0543 (13)
Sr1—O2b	2.690 (6)	W1—O1b	2.025 (6)
Sr1—O2b^i	2.690 (6)	W1—O1b^x	2.086 (6)
Sr1—O2c^ix	2.737 (6)	W1—O2a	1.814 (9)
Sr1—O2c^xi	2.737 (6)	W1—O2b^xi	1.811 (7)
Sr2—Sr2^ii	3.669 (4)	W1—O2c	1.796 (7)
Sr2—Sr1—Sr2^i	179.40 (3)	Sr1^iv—Sr2—O2b^iii	85.64 (14)
Sr2—Sr1—Sr2^ii	52.57 (5)	Sr1^iv—Sr2—O2c^xi	100.93 (15)
Sr2—Sr1—Sr2^iii	52.52 (3)	Sr1^iv—Sr2—O2c^xiii	41.93 (13)
Sr2—Sr1—Sr2^iv	52.18 (3)	Sr1^iv—Sr2—O2c^xiv	128.67 (11)
Sr2—Sr1—Sr2^v	127.43 (5)	Sr2^ii—Sr2—Sr2^iii	98.81 (5)
Sr2—Sr1—Sr2^vi	128.01 (4)	Sr2^ii—Sr2—Sr2^iv	99.08 (5)
Sr2—Sr1—Sr2^vii	127.30 (4)	Sr2^ii—Sr2—W1^i	108.86 (3)
Sr2—Sr1—W1	111.68 (4)	Sr2^ii—Sr2—W1^x	49.64 (3)
Sr2—Sr1—W1^viii	111.75 (3)	Sr2^ii—Sr2—W1^xi	49.59 (3)
Sr2—Sr1—W1^ix	111.22 (3)	Sr2^ii—Sr2—W1^ii	118.25 (7)
Sr2—Sr1—W1^i	68.32 (4)	Sr2^ii—Sr2—W1^xiii	172.09 (5)
Sr2—Sr1—W1^x	68.77 (3)	Sr2^ii—Sr2—W1^xiv	75.66 (6)
Sr2—Sr1—W1^xi	68.26 (3)	Sr2^ii—Sr2—W1^xv	76.00 (6)
Sr2—Sr1—O1a^xii	90.302 (17)	Sr2^ii—Sr2—O1a^iv	151.29 (7)
Sr2—Sr1—O1a	89.698 (17)	Sr2^ii—Sr2—O1b^ii	96.79 (15)
Sr2—Sr1—O1b	88.35 (12)	Sr2^ii—Sr2—O1b^xv	101.19 (14)
Sr2—Sr1—O1b^viii	88.68 (11)	Sr2^ii—Sr2—O2a^i	99.1 (2)
Sr2—Sr1—O1b^i	91.37 (12)	Sr2^ii—Sr2—O2a^xiv	93.1 (2)
Sr2—Sr1—O1b^x	91.64 (11)	Sr2^ii—Sr2—O2a^xv	93.0 (2)
Sr2—Sr1—O2a	142.69 (18)	Sr2^ii—Sr2—O2b	45.38 (19)
Sr2—Sr1—O2a^i	37.37 (18)	Sr2^ii—Sr2—O2b^ii	46.77 (15)
Sr2—Sr1—O2b	38.01 (15)	Sr2^ii—Sr2—O2b^iii	144.56 (12)
Sr2—Sr1—O2b^i	142.47 (15)	Sr2^ii—Sr2—O2c^xi	52.7 (2)
Sr2—Sr1—O2c^ix	141.97 (14)	Sr2^ii—Sr2—O2c^xiii	145.14 (14)
Sr2—Sr1—O2c^xi	37.48 (14)	Sr2^ii—Sr2—O2c^xiv	45.42 (14)
Sr2^i—Sr1—Sr2^ii	127.43 (5)	Sr2^iii—Sr2—Sr2^iv	99.27 (8)
Sr2^i—Sr1—Sr2^iii	128.01 (4)	Sr2^iii—Sr2—W1^i	49.64 (5)
Sr2^i—Sr1—Sr2^iv	127.30 (4)	Sr2^iii—Sr2—W1^x	49.51 (5)
Sr2^i—Sr1—Sr2^v	52.57 (5)	Sr2^iii—Sr2—W1^xi	108.78 (4)
Sr2^i—Sr1—Sr2^vi	52.52 (3)	Sr2^iii—Sr2—W1^ii	118.79 (4)
Sr2^i—Sr1—Sr2^vii	52.18 (3)	Sr2^iii—Sr2—W1^xiii	76.26 (7)
Sr2^i—Sr1—W1	68.32 (4)	Sr2^iii—Sr2—W1^xiv	75.79 (6)
Sr2^i—Sr1—W1^viii	68.77 (3)	Sr2^iii—Sr2—W1^xv	171.93 (3)
Sr2^i—Sr1—W1^ix	68.26 (3)	Sr2^iii—Sr2—O1a^iv	98.06 (11)
Sr2^i—Sr1—W1^i	111.68 (4)	Sr2^iii—Sr2—O1b^ii	102.68 (11)
Sr2^i—Sr1—W1^x	111.75 (3)	Sr2^iii—Sr2—O1b^xv	152.38 (12)
Sr2^i—Sr1—W1^xi	111.22 (3)	Sr2^iii—Sr2—O2a^i	45.59 (13)
Sr2^i—Sr1—O1a^xii	90.302 (17)	Sr2^iii—Sr2—O2a^xiv	46.34 (18)
Sr2^i—Sr1—O1a	89.698 (17)	Sr2^iii—Sr2—O2a^xv	144.67 (17)
Sr2^i—Sr1—O1b	91.37 (12)	Sr2^iii—Sr2—O2b	53.72 (19)
Sr2^i—Sr1—O1b^viii	91.64 (11)	Sr2^iii—Sr2—O2b^ii	145.14 (17)
Sr2^i—Sr1—O1b^i	88.35 (12)	Sr2^iii—Sr2—O2b^iii	46.09 (12)
Sr2^i—Sr1—O1b^x	88.68 (11)	Sr2^iii—Sr2—O2c^xi	100.27 (14)
Sr2^i—Sr1—O2a	37.37 (18)	Sr2^iii—Sr2—O2c^xiii	92.52 (17)
Sr2^i—Sr1—O2a^i	142.69 (18)	Sr2^iii—Sr2—O2c^xiv	91.77 (14)
Sr2^i—Sr1—O2b	142.47 (15)	Sr2^iv—Sr2—W1^i	50.00 (5)
Sr2^i—Sr1—O2b^i	38.01 (15)	Sr2^iv—Sr2—W1^x	108.98 (4)
Sr2^i—Sr1—O2c^ix	37.48 (14)	Sr2^iv—Sr2—W1^xi	49.83 (5)
Sr2^i—Sr1—O2c^xi	141.97 (14)	Sr2^iv—Sr2—W1^ii	118.61 (4)
Sr2^ii—Sr1—Sr2^iii	86.76 (4)	Sr2^iv—Sr2—W1^xiii	75.90 (7)
Sr2^ii—Sr1—Sr2^iv	86.54 (4)	Sr2^iv—Sr2—W1^xiv	171.92 (3)
Sr2^ii—Sr1—Sr2^v	179.65 (3)	Sr2^iv—Sr2—W1^xv	75.77 (6)
Sr2^ii—Sr1—Sr2^vi	93.48 (4)	Sr2^iv—Sr2—O1a^iv	100.92 (11)
Sr2^ii—Sr1—Sr2^vii	93.23 (4)	Sr2^iv—Sr2—O1b^ii	150.50 (11)
Sr2^ii—Sr1—W1	59.11 (3)	Sr2^iv—Sr2—O1b^xv	96.18 (11)
Sr2^ii—Sr1—W1^viii	126.58 (4)	Sr2^iv—Sr2—O2a^i	54.01 (13)
Sr2^ii—Sr1—W1^ix	126.22 (4)	Sr2^iv—Sr2—O2a^xiv	145.1 (2)
Sr2^ii—Sr1—W1^i	120.89 (3)	Sr2^iv—Sr2—O2a^xv	45.76 (16)
Sr2^ii—Sr1—W1^x	53.76 (3)	Sr2^iv—Sr2—O2b	99.66 (14)
Sr2^ii—Sr1—W1^xi	53.43 (3)	Sr2^iv—Sr2—O2b^ii	92.86 (15)
Sr2^ii—Sr1—O1a^xii	90.173 (18)	Sr2^iv—Sr2—O2b^iii	92.69 (15)
Sr2^ii—Sr1—O1a	89.827 (18)	Sr2^iv—Sr2—O2c^xi	46.6 (2)
Sr2^ii—Sr1—O1b	44.03 (11)	Sr2^iv—Sr2—O2c^xiii	46.34 (14)
Sr2^ii—Sr1—O1b^viii	131.32 (10)	Sr2^iv—Sr2—O2c^xiv	144.27 (15)
Sr2^ii—Sr1—O1b^i	135.74 (12)	W1^i—Sr2—W1^x	79.15 (2)
Sr2^ii—Sr1—O1b^x	48.92 (10)	W1^i—Sr2—W1^xi	79.45 (2)
Sr2^ii—Sr1—O2a	90.26 (18)	W1^i—Sr2—W1^ii	132.88 (7)
Sr2^ii—Sr1—O2a^i	89.76 (18)	W1^i—Sr2—W1^xiii	63.22 (5)
Sr2^ii—Sr1—O2b	39.38 (18)	W1^i—Sr2—W1^xiv	125.43 (4)
Sr2^ii—Sr1—O2b^i	140.89 (18)	W1^i—Sr2—W1^xv	125.77 (4)
Sr2^ii—Sr1—O2c^ix	133.16 (18)	W1^i—Sr2—O1a^iv	99.77 (8)
Sr2^ii—Sr1—O2c^xi	46.57 (18)	W1^i—Sr2—O1b^ii	143.91 (13)
Sr2^iii—Sr1—Sr2^iv	86.75 (6)	W1^i—Sr2—O1b^xv	137.08 (12)
Sr2^iii—Sr1—Sr2^v	93.48 (4)	W1^i—Sr2—O2a^i	10.5 (2)
Sr2^iii—Sr1—Sr2^vi	93.50 (6)	W1^i—Sr2—O2a^xiv	95.15 (19)
Sr2^iii—Sr1—Sr2^vii	179.75 (3)	W1^i—Sr2—O2a^xv	95.03 (16)
Sr2^iii—Sr1—W1	126.37 (5)	W1^i—Sr2—O2b	75.05 (18)
Sr2^iii—Sr1—W1^viii	59.23 (4)	W1^i—Sr2—O2b^ii	135.88 (12)
Sr2^iii—Sr1—W1^ix	126.26 (5)	W1^i—Sr2—O2b^iii	55.87 (11)
Sr2^iii—Sr1—W1^i	53.65 (4)	W1^i—Sr2—O2c^xi	70.92 (19)
Sr2^iii—Sr1—W1^x	53.75 (5)	W1^i—Sr2—O2c^xiii	56.08 (13)
Sr2^iii—Sr1—W1^xi	120.77 (4)	W1^i—Sr2—O2c^xiv	134.03 (11)
Sr2^iii—Sr1—O1a^xii	46.75 (3)	W1^x—Sr2—W1^xi	79.15 (6)
Sr2^iii—Sr1—O1a	133.25 (3)	W1^x—Sr2—W1^ii	132.40 (4)
Sr2^iii—Sr1—O1b	130.78 (12)	W1^x—Sr2—W1^xiii	125.77 (5)
Sr2^iii—Sr1—O1b^viii	44.57 (10)	W1^x—Sr2—W1^xiv	62.94 (4)
Sr2^iii—Sr1—O1b^i	89.31 (13)	W1^x—Sr2—W1^xv	125.64 (8)
Sr2^iii—Sr1—O1b^x	89.40 (12)	W1^x—Sr2—O1a^iv	138.21 (11)
Sr2^iii—Sr1—O2a	132.79 (13)	W1^x—Sr2—O1b^ii	100.26 (13)
Sr2^iii—Sr1—O2a^i	39.64 (12)	W1^x—Sr2—O1b^xv	143.19 (14)
Sr2^iii—Sr1—O2b	47.8 (2)	W1^x—Sr2—O2a^i	69.19 (18)
Sr2^iii—Sr1—O2b^i	90.19 (15)	W1^x—Sr2—O2a^xiv	56.7 (2)
Sr2^iii—Sr1—O2c^ix	139.7 (2)	W1^x—Sr2—O2a^xv	135.30 (19)
Sr2^iii—Sr1—O2c^xi	89.91 (14)	W1^x—Sr2—O2b	10.20 (12)
Sr2^iv—Sr1—Sr2^v	93.23 (4)	W1^x—Sr2—O2b^ii	95.64 (17)
Sr2^iv—Sr1—Sr2^vi	179.75 (3)	W1^x—Sr2—O2b^iii	94.93 (13)
Sr2^iv—Sr1—Sr2^vii	92.99 (6)	W1^x—Sr2—O2c^xi	74.88 (15)
Sr2^iv—Sr1—W1	126.18 (5)	W1^x—Sr2—O2c^xiii	134.98 (14)
Sr2^iv—Sr1—W1^viii	126.42 (5)	W1^x—Sr2—O2c^xiv	55.08 (11)
Sr2^iv—Sr1—W1^ix	59.04 (4)	W1^xi—Sr2—W1^ii	132.43 (4)
Sr2^iv—Sr1—W1^i	53.80 (4)	W1^xi—Sr2—W1^xiii	125.73 (5)
Sr2^iv—Sr1—W1^x	120.95 (4)	W1^xi—Sr2—W1^xiv	125.26 (8)
Sr2^iv—Sr1—W1^xi	53.57 (5)	W1^xi—Sr2—W1^xv	63.15 (4)
Sr2^iv—Sr1—O1a^xii	133.50 (3)	W1^xi—Sr2—O1a^iv	142.28 (11)
Sr2^iv—Sr1—O1a	46.50 (3)	W1^xi—Sr2—O1b^ii	136.32 (15)
Sr2^iv—Sr1—O1b	90.53 (13)	W1^xi—Sr2—O1b^xv	98.69 (12)
Sr2^iv—Sr1—O1b^viii	90.78 (12)	W1^xi—Sr2—O2a^i	74.86 (18)
Sr2^iv—Sr1—O1b^i	49.21 (12)	W1^xi—Sr2—O2a^xiv	135.6 (2)
Sr2^iv—Sr1—O1b^x	135.45 (10)	W1^xi—Sr2—O2a^xv	56.33 (18)
Sr2^iv—Sr1—O2a	140.11 (13)	W1^xi—Sr2—O2b	69.35 (14)
Sr2^iv—Sr1—O2a^i	47.46 (13)	W1^xi—Sr2—O2b^ii	56.70 (12)
Sr2^iv—Sr1—O2b	89.98 (15)	W1^xi—Sr2—O2b^iii	135.13 (12)
Sr2^iv—Sr1—O2b^i	132.24 (19)	W1^xi—Sr2—O2c^xi	9.08 (16)
Sr2^iv—Sr1—O2c^ix	89.90 (15)	W1^xi—Sr2—O2c^xiii	95.55 (14)
Sr2^iv—Sr1—O2c^xi	40.3 (2)	W1^xi—Sr2—O2c^xiv	94.44 (15)
Sr2^v—Sr1—Sr2^vi	86.76 (4)	W1^ii—Sr2—W1^xiii	69.66 (4)
Sr2^v—Sr1—Sr2^vii	86.54 (4)	W1^ii—Sr2—W1^xiv	69.46 (2)
Sr2^v—Sr1—W1	120.89 (3)	W1^ii—Sr2—W1^xv	69.28 (2)
Sr2^v—Sr1—W1^viii	53.76 (3)	W1^ii—Sr2—O1a^iv	33.158 (19)
Sr2^v—Sr1—W1^ix	53.43 (3)	W1^ii—Sr2—O1b^ii	32.29 (12)
Sr2^v—Sr1—W1^i	59.11 (3)	W1^ii—Sr2—O1b^xv	33.89 (10)
Sr2^v—Sr1—W1^x	126.58 (4)	W1^ii—Sr2—O2a^i	142.4 (2)
Sr2^v—Sr1—W1^xi	126.22 (4)	W1^ii—Sr2—O2a^xiv	82.62 (18)
Sr2^v—Sr1—O1a^xii	90.173 (18)	W1^ii—Sr2—O2a^xv	83.22 (15)
Sr2^v—Sr1—O1a	89.827 (18)	W1^ii—Sr2—O2b	141.46 (15)
Sr2^v—Sr1—O1b	135.74 (12)	W1^ii—Sr2—O2b^ii	82.18 (13)
Sr2^v—Sr1—O1b^viii	48.92 (10)	W1^ii—Sr2—O2b^iii	83.66 (11)
Sr2^v—Sr1—O1b^i	44.03 (11)	W1^ii—Sr2—O2c^xi	140.86 (14)
Sr2^v—Sr1—O1b^x	131.32 (10)	W1^ii—Sr2—O2c^xiii	83.45 (12)
Sr2^v—Sr1—O2a	89.76 (18)	W1^ii—Sr2—O2c^xiv	83.95 (11)
Sr2^v—Sr1—O2a^i	90.26 (18)	W1^xiii—Sr2—W1^xiv	108.61 (4)
Sr2^v—Sr1—O2b	140.89 (18)	W1^xiii—Sr2—W1^xv	108.18 (4)
Sr2^v—Sr1—O2b^i	39.38 (18)	W1^xiii—Sr2—O1a^iv	36.61 (3)
Sr2^v—Sr1—O2c^ix	46.57 (18)	W1^xiii—Sr2—O1b^ii	90.38 (13)
Sr2^v—Sr1—O2c^xi	133.16 (18)	W1^xiii—Sr2—O1b^xv	85.56 (12)
Sr2^vi—Sr1—Sr2^vii	86.75 (6)	W1^xiii—Sr2—O2a^i	73.0 (2)
Sr2^vi—Sr1—W1	53.65 (4)	W1^xiii—Sr2—O2a^xiv	87.9 (2)
Sr2^vi—Sr1—W1^viii	53.75 (5)	W1^xiii—Sr2—O2a^xv	87.8 (2)
Sr2^vi—Sr1—W1^ix	120.77 (4)	W1^xiii—Sr2—O2b	128.7 (2)
Sr2^vi—Sr1—W1^i	126.37 (5)	W1^xiii—Sr2—O2b^ii	138.58 (15)
Sr2^vi—Sr1—W1^x	59.23 (4)	W1^xiii—Sr2—O2b^iii	31.84 (13)
Sr2^vi—Sr1—W1^xi	126.26 (5)	W1^xiii—Sr2—O2c^xi	121.6 (2)
Sr2^vi—Sr1—O1a^xii	46.75 (3)	W1^xiii—Sr2—O2c^xiii	31.12 (14)
Sr2^vi—Sr1—O1a	133.25 (3)	W1^xiii—Sr2—O2c^xiv	139.83 (14)
Sr2^vi—Sr1—O1b	89.31 (13)	W1^xiv—Sr2—W1^xv	108.37 (8)
Sr2^vi—Sr1—O1b^viii	89.40 (12)	W1^xiv—Sr2—O1a^iv	86.22 (9)
Sr2^vi—Sr1—O1b^i	130.78 (12)	W1^xiv—Sr2—O1b^ii	37.49 (11)
Sr2^vi—Sr1—O1b^x	44.57 (10)	W1^xiv—Sr2—O1b^xv	90.91 (11)
Sr2^vi—Sr1—O2a	39.64 (12)	W1^xiv—Sr2—O2a^i	120.17 (13)
Sr2^vi—Sr1—O2a^i	132.79 (13)	W1^xiv—Sr2—O2a^xiv	31.52 (19)
Sr2^vi—Sr1—O2b	90.19 (15)	W1^xiv—Sr2—O2a^xv	139.54 (17)
Sr2^vi—Sr1—O2b^i	47.8 (2)	W1^xiv—Sr2—O2b	72.27 (14)
Sr2^vi—Sr1—O2c^ix	89.91 (14)	W1^xiv—Sr2—O2b^ii	87.94 (16)
Sr2^vi—Sr1—O2c^xi	139.7 (2)	W1^xiv—Sr2—O2b^iii	88.40 (14)
Sr2^vii—Sr1—W1	53.80 (4)	W1^xiv—Sr2—O2c^xi	127.3 (2)
Sr2^vii—Sr1—W1^viii	120.95 (4)	W1^xiv—Sr2—O2c^xiii	139.20 (15)
Sr2^vii—Sr1—W1^ix	53.57 (5)	W1^xiv—Sr2—O2c^xiv	31.65 (14)
Sr2^vii—Sr1—W1^i	126.18 (5)	W1^xv—Sr2—O1a^iv	89.20 (9)
Sr2^vii—Sr1—W1^x	126.42 (5)	W1^xv—Sr2—O1b^ii	84.22 (12)
Sr2^vii—Sr1—W1^xi	59.04 (4)	W1^xv—Sr2—O1b^xv	35.66 (11)
Sr2^vii—Sr1—O1a^xii	133.50 (3)	W1^xv—Sr2—O2a^i	128.45 (13)
Sr2^vii—Sr1—O1a	46.50 (3)	W1^xv—Sr2—O2a^xiv	139.07 (19)
Sr2^vii—Sr1—O1b	49.21 (12)	W1^xv—Sr2—O2a^xv	31.79 (17)
Sr2^vii—Sr1—O1b^viii	135.45 (10)	W1^xv—Sr2—O2b	120.3 (2)
Sr2^vii—Sr1—O1b^i	90.53 (13)	W1^xv—Sr2—O2b^ii	31.17 (16)
Sr2^vii—Sr1—O1b^x	90.78 (12)	W1^xv—Sr2—O2b^iii	139.43 (13)
Sr2^vii—Sr1—O2a	47.46 (13)	W1^xv—Sr2—O2c^xi	71.68 (14)
Sr2^vii—Sr1—O2a^i	140.11 (13)	W1^xv—Sr2—O2c^xiii	88.57 (15)
Sr2^vii—Sr1—O2b	132.24 (19)	W1^xv—Sr2—O2c^xiv	88.87 (15)
Sr2^vii—Sr1—O2b^i	89.98 (15)	O1a^iv—Sr2—O1b^ii	56.77 (14)
Sr2^vii—Sr1—O2c^ix	40.3 (2)	O1a^iv—Sr2—O1b^xv	56.38 (13)
Sr2^vii—Sr1—O2c^xi	89.90 (15)	O1a^iv—Sr2—O2a^i	109.3 (2)
W1—Sr1—W1^viii	107.39 (3)	O1a^iv—Sr2—O2a^xiv	82.1 (2)
W1—Sr1—W1^ix	107.36 (3)	O1a^iv—Sr2—O2a^xv	86.5 (2)
W1—Sr1—W1^i	180.0 (5)	O1a^iv—Sr2—O2b	147.47 (18)
W1—Sr1—W1^x	72.63 (2)	O1a^iv—Sr2—O2b^ii	111.61 (15)
W1—Sr1—W1^xi	72.62 (2)	O1a^iv—Sr2—O2b^iii	54.40 (13)
W1—Sr1—O1a^xii	90.012 (19)	O1a^iv—Sr2—O2c^xi	144.8 (2)
W1—Sr1—O1a	89.988 (19)	O1a^iv—Sr2—O2c^xiii	56.39 (14)
W1—Sr1—O1b	35.77 (12)	O1a^iv—Sr2—O2c^xiv	111.08 (14)
W1—Sr1—O1b^viii	143.01 (11)	O1b^ii—Sr2—O1b^xv	56.23 (15)
W1—Sr1—O1b^i	144.21 (13)	O1b^ii—Sr2—O2a^i	146.30 (19)
W1—Sr1—O1b^x	37.01 (11)	O1b^ii—Sr2—O2a^xiv	57.6 (2)
W1—Sr1—O2a	31.35 (18)	O1b^ii—Sr2—O2a^xv	108.87 (18)
W1—Sr1—O2a^i	148.65 (18)	O1b^ii—Sr2—O2b	109.17 (19)
W1—Sr1—O2b	87.0 (2)	O1b^ii—Sr2—O2b^ii	80.20 (18)
W1—Sr1—O2b^i	93.0 (2)	O1b^ii—Sr2—O2b^iii	88.56 (17)
W1—Sr1—O2c^ix	87.0 (2)	O1b^ii—Sr2—O2c^xi	144.4 (3)
W1—Sr1—O2c^xi	93.0 (2)	O1b^ii—Sr2—O2c^xiii	112.77 (18)
W1^viii—Sr1—W1^ix	107.19 (5)	O1b^ii—Sr2—O2c^xiv	54.51 (17)
W1^viii—Sr1—W1^i	72.63 (2)	O1b^xv—Sr2—O2a^i	146.3 (2)
W1^viii—Sr1—W1^x	72.83 (6)	O1b^xv—Sr2—O2a^xiv	113.4 (2)
W1^viii—Sr1—W1^xi	180.0 (5)	O1b^xv—Sr2—O2a^xv	52.74 (17)
W1^viii—Sr1—O1a^xii	36.41 (3)	O1b^xv—Sr2—O2b	144.8 (2)
W1^viii—Sr1—O1a	143.59 (3)	O1b^xv—Sr2—O2b^ii	55.68 (18)
W1^viii—Sr1—O1b	143.01 (13)	O1b^xv—Sr2—O2b^iii	110.66 (17)
W1^viii—Sr1—O1b^viii	35.74 (11)	O1b^xv—Sr2—O2c^xi	106.97 (17)
W1^viii—Sr1—O1b^i	87.37 (12)	O1b^xv—Sr2—O2c^xiii	81.80 (17)
W1^viii—Sr1—O1b^x	87.86 (11)	O1b^xv—Sr2—O2c^xiv	88.86 (16)
W1^viii—Sr1—O2a	86.39 (15)	O2a^i—Sr2—O2a^xiv	91.9 (2)
W1^viii—Sr1—O2a^i	87.50 (14)	O2a^i—Sr2—O2a^xv	99.8 (2)
W1^viii—Sr1—O2b	94.01 (15)	O2a^i—Sr2—O2b	64.7 (3)
W1^viii—Sr1—O2b^i	31.22 (13)	O2a^i—Sr2—O2b^ii	131.4 (2)
W1^viii—Sr1—O2c^ix	92.08 (14)	O2a^i—Sr2—O2b^iii	61.8 (2)
W1^viii—Sr1—O2c^xi	148.99 (15)	O2a^i—Sr2—O2c^xi	65.9 (3)
W1^ix—Sr1—W1^i	72.62 (2)	O2a^i—Sr2—O2c^xiii	66.3 (2)
W1^ix—Sr1—W1^x	180.0 (5)	O2a^i—Sr2—O2c^xiv	124.3 (2)
W1^ix—Sr1—W1^xi	72.80 (6)	O2a^xiv—Sr2—O2a^xv	165.8 (2)
W1^ix—Sr1—O1a^xii	143.60 (3)	O2a^xiv—Sr2—O2b	66.8 (2)
W1^ix—Sr1—O1a	36.40 (3)	O2a^xiv—Sr2—O2b^ii	118.6 (3)
W1^ix—Sr1—O1b	92.61 (12)	O2a^xiv—Sr2—O2b^iii	60.6 (3)
W1^ix—Sr1—O1b^viii	92.15 (11)	O2a^xiv—Sr2—O2c^xi	131.5 (2)
W1^ix—Sr1—O1b^i	37.00 (12)	O2a^xiv—Sr2—O2c^xiii	117.9 (3)
W1^ix—Sr1—O1b^x	144.26 (11)	O2a^xiv—Sr2—O2c^xiv	58.2 (3)
W1^ix—Sr1—O2a	92.50 (14)	O2a^xv—Sr2—O2b	125.7 (2)
W1^ix—Sr1—O2a^i	93.61 (15)	O2a^xv—Sr2—O2b^ii	58.4 (2)
W1^ix—Sr1—O2b	148.77 (13)	O2a^xv—Sr2—O2b^iii	118.4 (2)
W1^ix—Sr1—O2b^i	86.01 (14)	O2a^xv—Sr2—O2c^xi	61.6 (2)
W1^ix—Sr1—O2c^ix	31.02 (15)	O2a^xv—Sr2—O2c^xiii	61.0 (2)
W1^ix—Sr1—O2c^xi	87.91 (15)	O2a^xv—Sr2—O2c^xiv	119.4 (2)
W1^i—Sr1—W1^x	107.39 (3)	O2b—Sr2—O2b^ii	92.2 (3)
W1^i—Sr1—W1^xi	107.36 (3)	O2b—Sr2—O2b^iii	99.8 (2)
W1^i—Sr1—O1a^xii	90.012 (19)	O2b—Sr2—O2c^xi	64.78 (19)
W1^i—Sr1—O1a	89.988 (19)	O2b—Sr2—O2c^xiii	130.9 (2)
W1^i—Sr1—O1b	144.21 (13)	O2b—Sr2—O2c^xiv	60.5 (2)
W1^i—Sr1—O1b^viii	37.01 (11)	O2b^ii—Sr2—O2b^iii	165.77 (16)
W1^i—Sr1—O1b^i	35.77 (12)	O2b^ii—Sr2—O2c^xi	65.5 (2)
W1^i—Sr1—O1b^x	143.01 (11)	O2b^ii—Sr2—O2c^xiii	118.8 (2)
W1^i—Sr1—O2a	148.65 (18)	O2b^ii—Sr2—O2c^xiv	61.2 (2)
W1^i—Sr1—O2a^i	31.35 (18)	O2b^iii—Sr2—O2c^xi	126.8 (2)
W1^i—Sr1—O2b	93.0 (2)	O2b^iii—Sr2—O2c^xiii	57.9 (2)
W1^i—Sr1—O2b^i	87.0 (2)	O2b^iii—Sr2—O2c^xiv	118.55 (19)
W1^i—Sr1—O2c^ix	93.0 (2)	O2c^xi—Sr2—O2c^xiii	92.9 (2)
W1^i—Sr1—O2c^xi	87.0 (2)	O2c^xi—Sr2—O2c^xiv	98.1 (2)
W1^x—Sr1—W1^xi	107.19 (5)	O2c^xiii—Sr2—O2c^xiv	167.24 (16)
W1^x—Sr1—O1a^xii	36.41 (3)	Sr1—W1—Sr1^xvi	107.36 (2)
W1^x—Sr1—O1a	143.59 (3)	Sr1—W1—Sr1^xvii	107.39 (2)
W1^x—Sr1—O1b	87.37 (12)	Sr1—W1—Sr2^i	64.27 (3)
W1^x—Sr1—O1b^viii	87.86 (11)	Sr1—W1—Sr2^x	126.52 (4)
W1^x—Sr1—O1b^i	143.01 (13)	Sr1—W1—Sr2^xi	126.28 (4)
W1^x—Sr1—O1b^x	35.74 (11)	Sr1—W1—Sr2^ii	68.61 (5)
W1^x—Sr1—O2a	87.50 (14)	Sr1—W1—Sr2^xviii	178.93 (2)
W1^x—Sr1—O2a^i	86.39 (15)	Sr1—W1—Sr2^vi	72.09 (5)
W1^x—Sr1—O2b	31.22 (13)	Sr1—W1—Sr2^vii	72.21 (5)
W1^x—Sr1—O2b^i	94.01 (15)	Sr1—W1—O1a^xvi	120.17 (2)
W1^x—Sr1—O2c^ix	148.99 (15)	Sr1—W1—O1b	48.86 (16)
W1^x—Sr1—O2c^xi	92.08 (14)	Sr1—W1—O1b^x	58.69 (16)
W1^xi—Sr1—O1a^xii	143.60 (3)	Sr1—W1—O2a	50.2 (3)
W1^xi—Sr1—O1a	36.40 (3)	Sr1—W1—O2b^xi	119.5 (3)
W1^xi—Sr1—O1b	37.00 (12)	Sr1—W1—O2c	130.8 (3)
W1^xi—Sr1—O1b^viii	144.26 (11)	Sr1^xvi—W1—Sr1^xvii	107.19 (6)
W1^xi—Sr1—O1b^i	92.61 (12)	Sr1^xvi—W1—Sr2^i	126.55 (3)
W1^xi—Sr1—O1b^x	92.15 (11)	Sr1^xvi—W1—Sr2^x	64.21 (4)
W1^xi—Sr1—O2a	93.61 (15)	Sr1^xvi—W1—Sr2^xi	126.16 (5)
W1^xi—Sr1—O2a^i	92.50 (14)	Sr1^xvi—W1—Sr2^ii	68.53 (3)
W1^xi—Sr1—O2b	86.01 (14)	Sr1^xvi—W1—Sr2^xviii	72.23 (3)
W1^xi—Sr1—O2b^i	148.77 (13)	Sr1^xvi—W1—Sr2^vi	72.32 (6)
W1^xi—Sr1—O2c^ix	87.91 (15)	Sr1^xvi—W1—Sr2^vii	178.930 (13)
W1^xi—Sr1—O2c^xi	31.02 (15)	Sr1^xvi—W1—O1a^xvi	56.54 (16)
O1a^xii—Sr1—O1a	180.0 (5)	Sr1^xvi—W1—O1b	116.71 (14)
O1a^xii—Sr1—O1b	117.89 (12)	Sr1^xvi—W1—O1b^x	48.80 (16)
O1a^xii—Sr1—O1b^viii	58.16 (11)	Sr1^xvi—W1—O2a	120.19 (18)
O1a^xii—Sr1—O1b^i	117.89 (12)	Sr1^xvi—W1—O2b^xi	131.9 (3)
O1a^xii—Sr1—O1b^x	58.16 (11)	Sr1^xvi—W1—O2c	51.77 (18)
O1a^xii—Sr1—O2a	86.20 (12)	Sr1^xvii—W1—Sr2^i	126.00 (3)
O1a^xii—Sr1—O2a^i	86.20 (12)	Sr1^xvii—W1—Sr2^x	125.85 (5)
O1a^xii—Sr1—O2b	60.80 (12)	Sr1^xvii—W1—Sr2^xi	63.89 (4)
O1a^xii—Sr1—O2b^i	60.80 (12)	Sr1^xvii—W1—Sr2^ii	68.21 (3)
O1a^xii—Sr1—O2c^ix	123.72 (12)	Sr1^xvii—W1—Sr2^xviii	71.89 (2)
O1a^xii—Sr1—O2c^xi	123.72 (12)	Sr1^xvii—W1—Sr2^vi	179.053 (16)
O1a—Sr1—O1b	62.11 (12)	Sr1^xvii—W1—Sr2^vii	72.11 (6)
O1a—Sr1—O1b^viii	121.84 (11)	Sr1^xvii—W1—O1a^xvi	50.64 (16)
O1a—Sr1—O1b^i	62.11 (12)	Sr1^xvii—W1—O1b	58.67 (16)
O1a—Sr1—O1b^x	121.84 (11)	Sr1^xvii—W1—O1b^x	123.16 (14)
O1a—Sr1—O2a	93.80 (12)	Sr1^xvii—W1—O2a	131.40 (18)
O1a—Sr1—O2a^i	93.80 (12)	Sr1^xvii—W1—O2b^xi	50.35 (18)
O1a—Sr1—O2b	119.20 (12)	Sr1^xvii—W1—O2c	120.9 (3)
O1a—Sr1—O2b^i	119.20 (12)	Sr2^i—W1—Sr2^x	79.45 (4)
O1a—Sr1—O2c^ix	56.28 (12)	Sr2^i—W1—Sr2^xi	79.15 (4)
O1a—Sr1—O2c^xi	56.28 (12)	Sr2^i—W1—Sr2^ii	132.88 (6)
O1b—Sr1—O1b^viii	175.05 (15)	Sr2^i—W1—Sr2^xviii	116.78 (4)
O1b—Sr1—O1b^i	124.22 (17)	Sr2^i—W1—Sr2^vi	54.57 (4)
O1b—Sr1—O1b^x	59.82 (16)	Sr2^i—W1—Sr2^vii	54.23 (4)
O1b—Sr1—O2a	61.3 (2)	Sr2^i—W1—O1a^xvi	174.47 (9)
O1b—Sr1—O2a^i	122.9 (2)	Sr2^i—W1—O1b	96.81 (15)
O1b—Sr1—O2b	83.1 (2)	Sr2^i—W1—O1b^x	98.55 (14)
O1b—Sr1—O2b^i	125.2 (2)	Sr2^i—W1—O2a	15.4 (3)
O1b—Sr1—O2c^ix	89.4 (2)	Sr2^i—W1—O2b^xi	85.7 (2)
O1b—Sr1—O2c^xi	59.4 (2)	Sr2^i—W1—O2c	92.1 (2)
O1b^viii—Sr1—O1b^i	59.82 (16)	Sr2^x—W1—Sr2^xi	79.15 (5)
O1b^viii—Sr1—O1b^x	116.33 (16)	Sr2^x—W1—Sr2^ii	132.73 (4)
O1b^viii—Sr1—O2a	119.84 (19)	Sr2^x—W1—Sr2^xviii	54.27 (4)
O1b^viii—Sr1—O2a^i	55.43 (19)	Sr2^x—W1—Sr2^vi	54.74 (6)
O1b^viii—Sr1—O2b	92.1 (2)	Sr2^x—W1—Sr2^vii	116.85 (4)
O1b^viii—Sr1—O2b^i	56.5 (2)	Sr2^x—W1—O1a^xvi	99.17 (11)
O1b^viii—Sr1—O2c^ix	95.4 (2)	Sr2^x—W1—O1b	175.32 (16)
O1b^viii—Sr1—O2c^xi	119.5 (2)	Sr2^x—W1—O1b^x	92.13 (16)
O1b^i—Sr1—O1b^x	175.05 (15)	Sr2^x—W1—O2a	86.7 (3)
O1b^i—Sr1—O2a	122.9 (2)	Sr2^x—W1—O2b^xi	93.8 (2)
O1b^i—Sr1—O2a^i	61.3 (2)	Sr2^x—W1—O2c	13.4 (2)
O1b^i—Sr1—O2b	125.2 (2)	Sr2^xi—W1—Sr2^ii	132.10 (4)
O1b^i—Sr1—O2b^i	83.1 (2)	Sr2^xi—W1—Sr2^xviii	54.23 (4)
O1b^i—Sr1—O2c^ix	59.4 (2)	Sr2^xi—W1—Sr2^vi	117.06 (4)
O1b^i—Sr1—O2c^xi	89.4 (2)	Sr2^xi—W1—Sr2^vii	54.36 (6)
O1b^x—Sr1—O2a	55.43 (19)	Sr2^xi—W1—O1a^xvi	95.34 (11)
O1b^x—Sr1—O2a^i	119.84 (19)	Sr2^xi—W1—O1b	103.03 (16)
O1b^x—Sr1—O2b	56.5 (2)	Sr2^xi—W1—O1b^x	171.24 (15)
O1b^x—Sr1—O2b^i	92.1 (2)	Sr2^xi—W1—O2a	93.9 (2)
O1b^x—Sr1—O2c^ix	119.5 (2)	Sr2^xi—W1—O2b^xi	15.17 (18)
O1b^x—Sr1—O2c^xi	95.4 (2)	Sr2^xi—W1—O2c	85.8 (2)
O2a—Sr1—O2a^i	172.40 (18)	Sr2^ii—W1—Sr2^xviii	110.34 (5)
O2a—Sr1—O2b	111.9 (2)	Sr2^ii—W1—Sr2^vi	110.84 (3)
O2a—Sr1—O2b^i	64.1 (3)	Sr2^ii—W1—Sr2^vii	110.42 (3)
O2a—Sr1—O2c^ix	64.2 (2)	Sr2^ii—W1—O1a^xvi	51.65 (5)
O2a—Sr1—O2c^xi	120.6 (3)	Sr2^ii—W1—O1b	48.50 (14)
O2a^i—Sr1—O2b	64.1 (3)	Sr2^ii—W1—O1b^x	55.24 (14)
O2a^i—Sr1—O2b^i	111.9 (2)	Sr2^ii—W1—O2a	118.5 (3)
O2a^i—Sr1—O2c^ix	120.6 (3)	Sr2^ii—W1—O2b^xi	118.08 (17)
O2a^i—Sr1—O2c^xi	64.2 (2)	Sr2^ii—W1—O2c	119.99 (18)
O2b—Sr1—O2b^i	121.59 (18)	Sr2^xviii—W1—Sr2^vi	108.61 (5)
O2b—Sr1—O2c^ix	172.5 (3)	Sr2^xviii—W1—Sr2^vii	108.18 (5)
O2b—Sr1—O2c^xi	63.27 (18)	Sr2^xviii—W1—O1a^xvi	58.77 (3)
O2b^i—Sr1—O2c^ix	63.27 (18)	Sr2^xviii—W1—O1b	130.36 (16)
O2b^i—Sr1—O2c^xi	172.5 (3)	Sr2^xviii—W1—O1b^x	120.95 (16)
O2c^ix—Sr1—O2c^xi	112.57 (18)	Sr2^xviii—W1—O2a	130.8 (3)
Sr1—Sr2—Sr1^ii	127.43 (7)	Sr2^xviii—W1—O2b^xi	60.7 (3)
Sr1—Sr2—Sr1^iii	127.48 (4)	Sr2^xviii—W1—O2c	49.7 (3)
Sr1—Sr2—Sr1^iv	127.82 (4)	Sr2^vi—W1—Sr2^vii	108.37 (7)
Sr1—Sr2—Sr2^ii	61.46 (3)	Sr2^vi—W1—O1a^xvi	128.86 (16)
Sr1—Sr2—Sr2^iii	61.25 (3)	Sr2^vi—W1—O1b	120.76 (17)
Sr1—Sr2—Sr2^iv	61.64 (3)	Sr2^vi—W1—O1b^x	55.90 (14)
Sr1—Sr2—W1^i	47.405 (18)	Sr2^vi—W1—O2a	48.91 (19)
Sr1—Sr2—W1^x	47.34 (3)	Sr2^vi—W1—O2b^xi	130.59 (18)
Sr1—Sr2—W1^xi	47.54 (3)	Sr2^vi—W1—O2c	59.5 (3)
Sr1—Sr2—W1^ii	179.69 (8)	Sr2^vii—W1—O1a^xvi	122.74 (16)
Sr1—Sr2—W1^xiii	110.63 (6)	Sr2^vii—W1—O1b	62.25 (15)
Sr1—Sr2—W1^xiv	110.28 (4)	Sr2^vii—W1—O1b^x	130.84 (17)
Sr1—Sr2—W1^xv	110.69 (4)	Sr2^vii—W1—O2a	60.35 (18)
Sr1—Sr2—O1a^iv	147.12 (9)	Sr2^vii—W1—O2b^xi	48.3 (3)
Sr1—Sr2—O1b^ii	147.43 (13)	Sr2^vii—W1—O2c	129.26 (18)
Sr1—Sr2—O1b^xv	146.10 (11)	O1a^xvi—W1—O1b	84.82 (17)
Sr1—Sr2—O2a^i	37.9 (2)	O1a^xvi—W1—O1b^x	86.82 (18)
Sr1—Sr2—O2a^xiv	97.25 (18)	O1a^xvi—W1—O2a	169.9 (3)
Sr1—Sr2—O2a^xv	96.90 (15)	O1a^xvi—W1—O2b^xi	89.0 (3)
Sr1—Sr2—O2b	38.26 (14)	O1a^xvi—W1—O2c	87.0 (3)
Sr1—Sr2—O2b^ii	97.64 (13)	O1b—W1—O1b^x	85.6 (2)
Sr1—Sr2—O2b^iii	96.53 (11)	O1b—W1—O2a	89.0 (3)
Sr1—Sr2—O2c^xi	39.13 (13)	O1b—W1—O2b^xi	88.8 (3)
Sr1—Sr2—O2c^xiii	96.87 (12)	O1b—W1—O2c	168.5 (2)
Sr1—Sr2—O2c^xiv	95.73 (12)	O1b^x—W1—O2a	84.7 (3)
Sr1^ii—Sr2—Sr1^iii	86.76 (2)	O1b^x—W1—O2b^xi	173.3 (2)
Sr1^ii—Sr2—Sr1^iv	86.54 (2)	O1b^x—W1—O2c	85.8 (3)
Sr1^ii—Sr2—Sr2^ii	65.97 (5)	O2a—W1—O2b^xi	98.9 (3)
Sr1^ii—Sr2—Sr2^iii	129.68 (6)	O2a—W1—O2c	97.9 (4)
Sr1^ii—Sr2—Sr2^iv	129.54 (6)	O2b^xi—W1—O2c	99.2 (3)
Sr1^ii—Sr2—W1^i	174.83 (5)	Sr1—O1a—Sr1^xix	180.0 (5)
Sr1^ii—Sr2—W1^x	96.84 (5)	Sr1—O1a—Sr2^iv	88.17 (11)
Sr1^ii—Sr2—W1^xi	96.66 (5)	Sr1—O1a—Sr2^vii	88.17 (11)
Sr1^ii—Sr2—W1^ii	52.28 (2)	Sr1—O1a—W1^ix	87.05 (16)
Sr1^ii—Sr2—W1^xiii	121.94 (3)	Sr1—O1a—W1^xi	87.05 (16)
Sr1^ii—Sr2—W1^xiv	54.25 (4)	Sr1^xix—O1a—Sr2^iv	91.83 (11)
Sr1^ii—Sr2—W1^xv	54.13 (4)	Sr1^xix—O1a—Sr2^vii	91.83 (11)
Sr1^ii—Sr2—O1a^iv	85.39 (3)	Sr1^xix—O1a—W1^ix	92.95 (16)
Sr1^ii—Sr2—O1b^ii	39.70 (12)	Sr1^xix—O1a—W1^xi	92.95 (16)
Sr1^ii—Sr2—O1b^xv	46.56 (11)	Sr2^iv—O1a—Sr2^vii	176.3 (2)
Sr1^ii—Sr2—O2a^i	164.6 (2)	Sr2^iv—O1a—W1^ix	95.19 (5)
Sr1^ii—Sr2—O2a^xiv	85.24 (19)	Sr2^iv—O1a—W1^xi	84.62 (5)
Sr1^ii—Sr2—O2a^xv	85.51 (17)	Sr2^vii—O1a—W1^ix	84.62 (5)
Sr1^ii—Sr2—O2b	100.5 (2)	Sr2^vii—O1a—W1^xi	95.19 (5)
Sr1^ii—Sr2—O2b^ii	40.77 (13)	W1^ix—O1a—W1^xi	174.1 (3)
Sr1^ii—Sr2—O2b^iii	128.19 (11)	Sr1—O1b—Sr1^xvii	175.1 (2)
Sr1^ii—Sr2—O2c^xi	105.0 (2)	Sr1—O1b—Sr2^ii	96.26 (19)
Sr1^ii—Sr2—O2c^xiii	128.13 (13)	Sr1—O1b—Sr2^vii	90.81 (16)
Sr1^ii—Sr2—O2c^xiv	42.40 (11)	Sr1—O1b—W1	95.36 (19)
Sr1^iii—Sr2—Sr1^iv	86.75 (6)	Sr1—O1b—W1^xi	94.2 (2)
Sr1^iii—Sr2—Sr2^ii	129.59 (5)	Sr1^xvii—O1b—Sr2^ii	88.36 (15)
Sr1^iii—Sr2—Sr2^iii	66.23 (5)	Sr1^xvii—O1b—Sr2^vii	84.51 (15)
Sr1^iii—Sr2—Sr2^iv	129.92 (9)	Sr1^xvii—O1b—W1	85.6 (2)
Sr1^iii—Sr2—W1^i	96.91 (5)	Sr1^xvii—O1b—W1^xi	84.29 (17)
Sr1^iii—Sr2—W1^x	96.87 (5)	Sr2^ii—O1b—Sr2^vii	172.6 (2)
Sr1^iii—Sr2—W1^xi	175.01 (3)	Sr2^ii—O1b—W1	99.2 (2)
Sr1^iii—Sr2—W1^ii	52.55 (3)	Sr2^ii—O1b—W1^xi	86.61 (18)
Sr1^iii—Sr2—W1^xiii	54.36 (3)	Sr2^vii—O1b—W1	82.09 (18)
Sr1^iii—Sr2—W1^xiv	54.26 (3)	Sr2^vii—O1b—W1^xi	90.86 (17)
Sr1^iii—Sr2—W1^xv	121.83 (4)	W1—O1b—W1^xi	168.2 (3)
Sr1^iii—Sr2—O1a^iv	41.42 (11)	Sr1—O2a—Sr2^i	104.7 (3)
Sr1^iii—Sr2—O1b^ii	47.07 (12)	Sr1—O2a—Sr2^vi	99.5 (3)
Sr1^iii—Sr2—O1b^xv	86.30 (11)	Sr1—O2a—Sr2^vii	91.2 (2)
Sr1^iii—Sr2—O2a^i	100.98 (18)	Sr1—O2a—W1	98.4 (3)
Sr1^iii—Sr2—O2a^xiv	40.8 (2)	Sr2^i—O2a—Sr2^vi	88.1 (2)
Sr1^iii—Sr2—O2a^xv	127.80 (18)	Sr2^i—O2a—Sr2^vii	80.23 (18)
Sr1^iii—Sr2—O2b	106.50 (14)	Sr2^i—O2a—W1	154.1 (5)
Sr1^iii—Sr2—O2b^ii	127.15 (13)	Sr2^vi—O2a—Sr2^vii	165.8 (3)
Sr1^iii—Sr2—O2b^iii	41.72 (11)	Sr2^vi—O2a—W1	99.6 (3)
Sr1^iii—Sr2—O2c^xi	166.20 (16)	Sr2^vii—O2a—W1	87.9 (2)
Sr1^iii—Sr2—O2c^xiii	85.12 (15)	Sr1—O2b—Sr2	103.7 (3)
Sr1^iii—Sr2—O2c^xiv	85.62 (14)	Sr1—O2b—Sr2^ii	99.9 (2)
Sr1^iv—Sr2—Sr2^ii	129.68 (5)	Sr1—O2b—Sr2^iii	90.5 (3)
Sr1^iv—Sr2—Sr2^iii	130.14 (9)	Sr1—O2b—W1^x	98.4 (2)
Sr1^iv—Sr2—Sr2^iv	66.18 (5)	Sr2—O2b—Sr2^ii	87.85 (19)
Sr1^iv—Sr2—W1^i	97.27 (5)	Sr2—O2b—Sr2^iii	80.2 (2)
Sr1^iv—Sr2—W1^x	175.16 (3)	Sr2—O2b—W1^x	154.6 (3)
Sr1^iv—Sr2—W1^xi	97.06 (5)	Sr2^ii—O2b—Sr2^iii	165.8 (2)
Sr1^iv—Sr2—W1^ii	52.43 (3)	Sr2^ii—O2b—W1^x	100.5 (4)
Sr1^iv—Sr2—W1^xiii	54.20 (3)	Sr2^iii—O2b—W1^x	87.5 (3)
Sr1^iv—Sr2—W1^xiv	121.89 (4)	Sr1^xvi—O2c—Sr2^x	103.4 (2)
Sr1^iv—Sr2—W1^xv	53.99 (3)	Sr1^xvi—O2c—Sr2^xviii	97.8 (3)
Sr1^iv—Sr2—O1a^iv	45.33 (11)	Sr1^xvi—O2c—Sr2^vi	91.0 (2)
Sr1^iv—Sr2—O1b^ii	84.56 (12)	Sr1^xvi—O2c—W1	97.2 (2)
Sr1^iv—Sr2—O1b^xv	39.98 (11)	Sr2^x—O2c—Sr2^xviii	87.1 (3)
Sr1^iv—Sr2—O2a^i	107.04 (19)	Sr2^x—O2c—Sr2^vi	81.88 (18)
Sr1^iv—Sr2—O2a^xiv	127.2 (2)	Sr2^x—O2c—W1	157.5 (4)
Sr1^iv—Sr2—O2a^xv	41.30 (18)	Sr2^xviii—O2c—Sr2^vi	167.2 (2)
Sr1^iv—Sr2—O2b	165.22 (12)	Sr2^xviii—O2c—W1	99.1 (3)
Sr1^iv—Sr2—O2b^ii	84.64 (16)	Sr2^vi—O2c—W1	88.9 (4)

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

Strontium tungstate (123K)

Crystal data

Sr3W2O9	F(000) = 1336
Mr = 774.6	Dx = 7.202 Mg m^−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 3782 reflections
a = 9.627 (3) Å	θ = 3.1–30.5°
b = 5.558 (5) Å	µ = 54.36 mm^−1
c = 13.732 (2) Å	T = 123 K
β = 103.514 (6)°	Prism, colourless
V = 714.4 (7) Å^3	0.12 × 0.06 × 0.06 mm
Z = 4

Data collection

Bruker CCD diffractometer	1077 independent reflections
Radiation source: X-ray tube	965 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.023
φ and ω scans	θmax = 30.5°, θmin = 3.1°
Absorption correction: multi-scan (SADABS; Bruker, 2015)	h = −13→9
Tmin = 0.087, Tmax = 0.223	k = −7→7
3782 measured reflections	l = −19→19

Refinement

Refinement on F^2	0 constraints
R[F > 3σ(F)] = 0.016	Weighting scheme based on measured s.u.'s w = 1/(σ^2(I) + 0.0004I^2)
wR(F) = 0.043	(Δ/σ)max = 0.012
S = 1.01	Δρmax = 0.49 e Å^−3
1077 reflections	Δρmin = −0.61 e Å^−3
45 parameters	Extinction correction: B-C type 1 Gaussian isotropic (Becker & Coppens, 1974)
0 restraints	Extinction coefficient: 64 (6)

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

	x	y	z	Uiso*/Ueq
Sr1	0	0.24272 (12)	0.25	0.0059 (5)
Sr2	0.1043 (2)	0.25169 (9)	0.56493 (3)	0.0066 (3)
W1	0.30093 (6)	0.24306 (3)	0.155252 (11)	0.00421 (16)
O1a	0	0.7527 (9)	0.25	0.0056 (15)*
O1b	0.2429 (4)	0.4426 (7)	0.2598 (3)	0.0083 (8)*
O2a	0.1146 (9)	0.2146 (8)	0.0898 (5)	0.0079 (10)*
O2b	0.1570 (8)	0.0110 (8)	0.4074 (3)	0.0056 (9)*
O2c	0.3755 (8)	0.0155 (8)	0.0873 (3)	0.0068 (9)*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sr1	0.0056 (9)	0.0083 (9)	0.0031 (2)	0	−0.0003 (9)	0
Sr2	0.0081 (7)	0.0079 (6)	0.00338 (15)	0.00023 (17)	0.0003 (6)	0.00064 (13)
W1	0.0051 (3)	0.0063 (3)	0.00080 (9)	−0.00010 (9)	−0.0003 (3)	−0.00007 (7)

Geometric parameters (Å, º)

Sr1—Sr1^i	5.558 (10)	Sr2—Sr2^ii	5.558 (10)
Sr1—Sr1^ii	5.558 (10)	Sr2—Sr2^iii	5.558 (4)
Sr1—Sr1^iii	5.558 (4)	Sr2—Sr2^iv	5.558 (4)
Sr1—Sr1^iv	5.558 (4)	Sr2—Sr2^v	5.558 (4)
Sr1—Sr1^v	5.558 (4)	Sr2—Sr2^vi	5.558 (4)
Sr1—Sr1^vi	5.558 (4)	Sr2—Sr2^viii	3.659 (3)
Sr1—Sr2	4.2052 (14)	Sr2—Sr2^ix	3.656 (4)
Sr1—Sr2^vii	4.2052 (14)	Sr2—Sr2^x	3.627 (4)
Sr1—Sr2^viii	4.055 (3)	Sr2—W1^vii	4.342 (3)
Sr1—Sr2^ix	4.026 (4)	Sr2—W1^xiv	4.388 (3)
Sr1—Sr2^x	4.069 (4)	Sr2—W1^xv	4.327 (3)
Sr1—Sr2^xi	4.055 (3)	Sr2—W1^viii	3.7362 (12)
Sr1—Sr2^xii	4.026 (4)	Sr2—W1^xvi	3.429 (2)
Sr1—Sr2^xiii	4.069 (4)	Sr2—W1^xvii	3.404 (4)
Sr1—W1	3.4419 (16)	Sr2—W1^xviii	3.451 (4)
Sr1—W1^iii	3.451 (4)	Sr2—O1a^x	2.9428 (13)
Sr1—W1^iv	3.455 (4)	Sr2—O1b^viii	2.733 (4)
Sr1—W1^vii	3.4419 (16)	Sr2—O1b^xviii	3.187 (4)
Sr1—W1^xiv	3.451 (4)	Sr2—O2a^vii	2.628 (7)
Sr1—W1^xv	3.455 (4)	Sr2—O2a^xvii	2.613 (6)
Sr1—O1a^i	2.723 (7)	Sr2—O2a^xviii	2.985 (7)
Sr1—O1a	2.835 (7)	Sr2—O2b	2.691 (5)
Sr1—O1b	2.564 (4)	Sr2—O2b^viii	2.599 (7)
Sr1—O1b^iii	3.014 (5)	Sr2—O2b^ix	3.008 (8)
Sr1—O1b^vii	2.564 (4)	Sr2—O2c^xv	2.598 (5)
Sr1—O1b^xiv	3.014 (5)	Sr2—O2c^xvi	2.634 (7)
Sr1—O2a	2.686 (8)	Sr2—O2c^xvii	2.957 (7)
Sr1—O2a^vii	2.686 (8)	W1—O1a^v	2.0501 (13)
Sr1—O2b	2.662 (5)	W1—O1b	1.995 (4)
Sr1—O2b^vii	2.662 (5)	W1—O1b^xiv	2.135 (5)
Sr1—O2c^iv	2.734 (5)	W1—O2a	1.816 (8)
Sr1—O2c^xv	2.734 (5)	W1—O2b^xv	1.812 (5)
Sr2—Sr2^i	5.558 (10)	W1—O2c	1.816 (6)
Sr1^i—Sr1—Sr1^ii	180.0 (5)	Sr1^x—Sr2—Sr2^iii	90.30 (5)
Sr1^i—Sr1—Sr1^iii	60.00 (2)	Sr1^x—Sr2—Sr2^iv	46.73 (2)
Sr1^i—Sr1—Sr1^iv	120.00 (2)	Sr1^x—Sr2—Sr2^v	133.27 (3)
Sr1^i—Sr1—Sr1^v	60.00 (2)	Sr1^x—Sr2—Sr2^vi	89.70 (4)
Sr1^i—Sr1—Sr1^vi	120.00 (2)	Sr1^x—Sr2—Sr2^viii	129.58 (4)
Sr1^i—Sr1—Sr2	90.681 (10)	Sr1^x—Sr2—Sr2^ix	130.21 (6)
Sr1^i—Sr1—Sr2^vii	90.681 (10)	Sr1^x—Sr2—Sr2^x	65.95 (4)
Sr1^i—Sr1—Sr2^viii	90.441 (11)	Sr1^x—Sr2—W1^vii	97.46 (4)
Sr1^i—Sr1—Sr2^ix	46.96 (3)	Sr1^x—Sr2—W1^xiv	175.33 (2)
Sr1^i—Sr1—Sr2^x	133.68 (3)	Sr1^x—Sr2—W1^xv	97.10 (5)
Sr1^i—Sr1—Sr2^xi	90.441 (11)	Sr1^x—Sr2—W1^viii	52.33 (2)
Sr1^i—Sr1—Sr2^xii	46.96 (3)	Sr1^x—Sr2—W1^xvi	54.05 (3)
Sr1^i—Sr1—Sr2^xiii	133.68 (3)	Sr1^x—Sr2—W1^xvii	121.85 (3)
Sr1^i—Sr1—W1	90.033 (10)	Sr1^x—Sr2—W1^xviii	53.72 (3)
Sr1^i—Sr1—W1^iii	36.43 (3)	Sr1^x—Sr2—O1a^x	44.16 (10)
Sr1^i—Sr1—W1^iv	143.61 (3)	Sr1^x—Sr2—O1b^viii	83.31 (9)
Sr1^i—Sr1—W1^vii	90.033 (10)	Sr1^x—Sr2—O1b^xviii	39.05 (7)
Sr1^i—Sr1—W1^xiv	36.43 (3)	Sr1^x—Sr2—O2a^vii	106.91 (16)
Sr1^i—Sr1—W1^xv	143.61 (3)	Sr1^x—Sr2—O2a^xvii	127.64 (18)
Sr1^i—Sr1—O1a^i	0.0 (5)	Sr1^x—Sr2—O2a^xviii	41.29 (16)
Sr1^i—Sr1—O1a	180.0 (5)	Sr1^x—Sr2—O2b	165.00 (9)
Sr1^i—Sr1—O1b	115.68 (9)	Sr1^x—Sr2—O2b^viii	84.09 (13)
Sr1^i—Sr1—O1b^iii	56.39 (8)	Sr1^x—Sr2—O2b^ix	85.45 (11)
Sr1^i—Sr1—O1b^vii	115.68 (9)	Sr1^x—Sr2—O2c^xv	100.87 (12)
Sr1^i—Sr1—O1b^xiv	56.39 (8)	Sr1^x—Sr2—O2c^xvi	41.64 (10)
Sr1^i—Sr1—O2a	86.67 (10)	Sr1^x—Sr2—O2c^xvii	128.52 (9)
Sr1^i—Sr1—O2a^vii	86.67 (10)	Sr2^i—Sr2—Sr2^ii	180.0 (5)
Sr1^i—Sr1—O2b	61.07 (10)	Sr2^i—Sr2—Sr2^iii	60.00 (3)
Sr1^i—Sr1—O2b^vii	61.07 (10)	Sr2^i—Sr2—Sr2^iv	120.00 (4)
Sr1^i—Sr1—O2c^iv	123.68 (10)	Sr2^i—Sr2—Sr2^v	60.00 (3)
Sr1^i—Sr1—O2c^xv	123.68 (10)	Sr2^i—Sr2—Sr2^vi	120.00 (4)
Sr1^ii—Sr1—Sr1^iii	120.00 (2)	Sr2^i—Sr2—Sr2^viii	89.71 (3)
Sr1^ii—Sr1—Sr1^iv	60.00 (2)	Sr2^i—Sr2—Sr2^ix	40.07 (3)
Sr1^ii—Sr1—Sr1^v	120.00 (2)	Sr2^i—Sr2—Sr2^x	139.55 (5)
Sr1^ii—Sr1—Sr1^vi	60.00 (2)	Sr2^i—Sr2—W1^vii	89.37 (2)
Sr1^ii—Sr1—Sr2	89.319 (10)	Sr2^i—Sr2—W1^xiv	49.89 (3)
Sr1^ii—Sr1—Sr2^vii	89.319 (10)	Sr2^i—Sr2—W1^xv	129.14 (3)
Sr1^ii—Sr1—Sr2^viii	89.559 (11)	Sr2^i—Sr2—W1^viii	90.447 (10)
Sr1^ii—Sr1—Sr2^ix	133.04 (3)	Sr2^i—Sr2—W1^xvi	90.49 (3)
Sr1^ii—Sr1—Sr2^x	46.32 (3)	Sr2^i—Sr2—W1^xvii	36.11 (3)
Sr1^ii—Sr1—Sr2^xi	89.559 (11)	Sr2^i—Sr2—W1^xviii	144.46 (5)
Sr1^ii—Sr1—Sr2^xii	133.04 (3)	Sr2^i—Sr2—O1a^x	89.52 (10)
Sr1^ii—Sr1—Sr2^xiii	46.32 (3)	Sr2^i—Sr2—O1b^viii	66.72 (8)
Sr1^ii—Sr1—W1	89.967 (10)	Sr2^i—Sr2—O1b^xviii	122.21 (7)
Sr1^ii—Sr1—W1^iii	143.57 (3)	Sr2^i—Sr2—O2a^vii	85.50 (10)
Sr1^ii—Sr1—W1^iv	36.39 (3)	Sr2^i—Sr2—O2a^xvii	7.31 (14)
Sr1^ii—Sr1—W1^vii	89.967 (10)	Sr2^i—Sr2—O2a^xviii	173.60 (13)
Sr1^ii—Sr1—W1^xiv	143.57 (3)	Sr2^i—Sr2—O2b	60.19 (10)
Sr1^ii—Sr1—W1^xv	36.39 (3)	Sr2^i—Sr2—O2b^viii	120.49 (13)
Sr1^ii—Sr1—O1a^i	180.0 (5)	Sr2^i—Sr2—O2b^ix	60.97 (11)
Sr1^ii—Sr1—O1a	0.0 (5)	Sr2^i—Sr2—O2c^xv	124.37 (11)
Sr1^ii—Sr1—O1b	64.32 (9)	Sr2^i—Sr2—O2c^xvi	119.43 (13)
Sr1^ii—Sr1—O1b^iii	123.61 (8)	Sr2^i—Sr2—O2c^xvii	59.85 (11)
Sr1^ii—Sr1—O1b^vii	64.32 (9)	Sr2^ii—Sr2—Sr2^iii	120.00 (4)
Sr1^ii—Sr1—O1b^xiv	123.61 (8)	Sr2^ii—Sr2—Sr2^iv	60.00 (3)
Sr1^ii—Sr1—O2a	93.33 (10)	Sr2^ii—Sr2—Sr2^v	120.00 (4)
Sr1^ii—Sr1—O2a^vii	93.33 (10)	Sr2^ii—Sr2—Sr2^vi	60.00 (3)
Sr1^ii—Sr1—O2b	118.93 (10)	Sr2^ii—Sr2—Sr2^viii	90.29 (3)
Sr1^ii—Sr1—O2b^vii	118.93 (10)	Sr2^ii—Sr2—Sr2^ix	139.93 (5)
Sr1^ii—Sr1—O2c^iv	56.32 (10)	Sr2^ii—Sr2—Sr2^x	40.45 (3)
Sr1^ii—Sr1—O2c^xv	56.32 (10)	Sr2^ii—Sr2—W1^vii	90.63 (2)
Sr1^iii—Sr1—Sr1^iv	60.00 (5)	Sr2^ii—Sr2—W1^xiv	130.11 (3)
Sr1^iii—Sr1—Sr1^v	120.00 (5)	Sr2^ii—Sr2—W1^xv	50.86 (3)
Sr1^iii—Sr1—Sr1^vi	180.0 (5)	Sr2^ii—Sr2—W1^viii	89.553 (10)
Sr1^iii—Sr1—Sr2	90.26 (3)	Sr2^ii—Sr2—W1^xvi	89.51 (3)
Sr1^iii—Sr1—Sr2^vii	90.42 (3)	Sr2^ii—Sr2—W1^xvii	143.89 (5)
Sr1^iii—Sr1—Sr2^viii	133.67 (2)	Sr2^ii—Sr2—W1^xviii	35.54 (3)
Sr1^iii—Sr1—Sr2^ix	46.77 (3)	Sr2^ii—Sr2—O1a^x	90.48 (10)
Sr1^iii—Sr1—Sr2^x	90.30 (4)	Sr2^ii—Sr2—O1b^viii	113.28 (9)
Sr1^iii—Sr1—Sr2^xi	46.94 (2)	Sr2^ii—Sr2—O1b^xviii	57.79 (7)
Sr1^iii—Sr1—Sr2^xii	90.14 (4)	Sr2^ii—Sr2—O2a^vii	94.50 (10)
Sr1^iii—Sr1—Sr2^xiii	133.27 (3)	Sr2^ii—Sr2—O2a^xvii	172.69 (14)
Sr1^iii—Sr1—W1	143.68 (2)	Sr2^ii—Sr2—O2a^xviii	6.40 (13)
Sr1^iii—Sr1—W1^iii	36.207 (13)	Sr2^ii—Sr2—O2b	119.81 (10)
Sr1^iii—Sr1—W1^iv	89.90 (5)	Sr2^ii—Sr2—O2b^viii	59.51 (12)
Sr1^iii—Sr1—W1^vii	36.38 (2)	Sr2^ii—Sr2—O2b^ix	119.03 (11)
Sr1^iii—Sr1—W1^xiv	90.13 (5)	Sr2^ii—Sr2—O2c^xv	55.63 (10)
Sr1^iii—Sr1—W1^xv	143.776 (14)	Sr2^ii—Sr2—O2c^xvi	60.57 (12)
Sr1^iii—Sr1—O1a^i	60.00 (2)	Sr2^ii—Sr2—O2c^xvii	120.15 (12)
Sr1^iii—Sr1—O1a	120.00 (2)	Sr2^iii—Sr2—Sr2^iv	60.00 (5)
Sr1^iii—Sr1—O1b	174.81 (9)	Sr2^iii—Sr2—Sr2^v	120.00 (5)
Sr1^iii—Sr1—O1b^iii	4.41 (7)	Sr2^iii—Sr2—Sr2^vi	180.0 (5)
Sr1^iii—Sr1—O1b^vii	55.77 (10)	Sr2^iii—Sr2—Sr2^viii	139.47 (3)
Sr1^iii—Sr1—O1b^xiv	116.33 (9)	Sr2^iii—Sr2—Sr2^ix	40.57 (3)
Sr1^iii—Sr1—O2a	119.50 (14)	Sr2^iii—Sr2—Sr2^x	90.03 (6)
Sr1^iii—Sr1—O2a^vii	56.60 (14)	Sr2^iii—Sr2—W1^vii	50.00 (3)
Sr1^iii—Sr1—O2b	94.90 (15)	Sr2^iii—Sr2—W1^xiv	89.85 (4)
Sr1^iii—Sr1—O2b^vii	55.30 (15)	Sr2^iii—Sr2—W1^xv	129.76 (3)
Sr1^iii—Sr1—O2c^iv	93.61 (15)	Sr2^iii—Sr2—W1^viii	90.42 (3)
Sr1^iii—Sr1—O2c^xv	119.44 (15)	Sr2^iii—Sr2—W1^xvi	36.25 (3)
Sr1^iv—Sr1—Sr1^v	180.0 (5)	Sr2^iii—Sr2—W1^xvii	90.23 (5)
Sr1^iv—Sr1—Sr1^vi	120.00 (5)	Sr2^iii—Sr2—W1^xviii	144.01 (4)
Sr1^iv—Sr1—Sr2	89.58 (3)	Sr2^iii—Sr2—O1a^x	61.68 (6)
Sr1^iv—Sr1—Sr2^vii	89.74 (3)	Sr2^iii—Sr2—O1b^viii	95.18 (9)
Sr1^iv—Sr1—Sr2^viii	133.06 (2)	Sr2^iii—Sr2—O1b^xviii	117.33 (9)
Sr1^iv—Sr1—Sr2^ix	89.86 (4)	Sr2^iii—Sr2—O2a^vii	55.24 (17)
Sr1^iv—Sr1—Sr2^x	46.73 (3)	Sr2^iii—Sr2—O2a^xvii	60.7 (2)
Sr1^iv—Sr1—Sr2^xi	46.33 (2)	Sr2^iii—Sr2—O2a^xviii	120.17 (18)
Sr1^iv—Sr1—Sr2^xii	133.23 (3)	Sr2^iii—Sr2—O2b	94.44 (15)
Sr1^iv—Sr1—Sr2^xiii	89.70 (4)	Sr2^iii—Sr2—O2b^viii	171.79 (10)
Sr1^iv—Sr1—W1	143.62 (2)	Sr2^iii—Sr2—O2b^ix	7.09 (8)
Sr1^iv—Sr1—W1^iii	89.87 (5)	Sr2^iii—Sr2—O2c^xv	120.66 (16)
Sr1^iv—Sr1—W1^iv	36.224 (13)	Sr2^iii—Sr2—O2c^xvi	59.85 (13)
Sr1^iv—Sr1—W1^vii	36.32 (2)	Sr2^iii—Sr2—O2c^xvii	119.51 (12)
Sr1^iv—Sr1—W1^xiv	143.793 (14)	Sr2^iv—Sr2—Sr2^v	180.0 (5)
Sr1^iv—Sr1—W1^xv	90.10 (5)	Sr2^iv—Sr2—Sr2^vi	120.00 (5)
Sr1^iv—Sr1—O1a^i	120.00 (2)	Sr2^iv—Sr2—Sr2^viii	139.92 (3)
Sr1^iv—Sr1—O1a	60.00 (2)	Sr2^iv—Sr2—Sr2^ix	90.32 (6)
Sr1^iv—Sr1—O1b	124.23 (10)	Sr2^iv—Sr2—Sr2^x	40.50 (3)
Sr1^iv—Sr1—O1b^iii	63.67 (9)	Sr2^iv—Sr2—W1^vii	50.83 (3)
Sr1^iv—Sr1—O1b^vii	5.19 (8)	Sr2^iv—Sr2—W1^xiv	129.91 (3)
Sr1^iv—Sr1—O1b^xiv	175.59 (7)	Sr2^iv—Sr2—W1^xv	90.48 (4)
Sr1^iv—Sr1—O2a	123.40 (14)	Sr2^iv—Sr2—W1^viii	89.97 (3)
Sr1^iv—Sr1—O2a^vii	60.50 (14)	Sr2^iv—Sr2—W1^xvi	35.42 (3)
Sr1^iv—Sr1—O2b	124.70 (15)	Sr2^iv—Sr2—W1^xvii	144.27 (4)
Sr1^iv—Sr1—O2b^vii	85.10 (15)	Sr2^iv—Sr2—W1^xviii	89.74 (5)
Sr1^iv—Sr1—O2c^iv	60.56 (15)	Sr2^iv—Sr2—O1a^x	62.22 (6)
Sr1^iv—Sr1—O2c^xv	86.39 (15)	Sr2^iv—Sr2—O1b^viii	119.05 (10)
Sr1^v—Sr1—Sr1^vi	60.00 (5)	Sr2^iv—Sr2—O1b^xviii	85.76 (8)
Sr1^v—Sr1—Sr2	90.42 (3)	Sr2^iv—Sr2—O2a^vii	60.55 (17)
Sr1^v—Sr1—Sr2^vii	90.26 (3)	Sr2^iv—Sr2—O2a^xvii	120.2 (2)
Sr1^v—Sr1—Sr2^viii	46.94 (2)	Sr2^iv—Sr2—O2a^xviii	60.58 (17)
Sr1^v—Sr1—Sr2^ix	90.14 (4)	Sr2^iv—Sr2—O2b	125.07 (14)
Sr1^v—Sr1—Sr2^x	133.27 (3)	Sr2^iv—Sr2—O2b^viii	118.84 (13)
Sr1^v—Sr1—Sr2^xi	133.67 (2)	Sr2^iv—Sr2—O2b^ix	59.53 (12)
Sr1^v—Sr1—Sr2^xii	46.77 (3)	Sr2^iv—Sr2—O2c^xv	86.87 (16)
Sr1^v—Sr1—Sr2^xiii	90.30 (4)	Sr2^iv—Sr2—O2c^xvi	6.52 (9)
Sr1^v—Sr1—W1	36.38 (2)	Sr2^iv—Sr2—O2c^xvii	174.19 (8)
Sr1^v—Sr1—W1^iii	90.13 (5)	Sr2^v—Sr2—Sr2^vi	60.00 (5)
Sr1^v—Sr1—W1^iv	143.776 (14)	Sr2^v—Sr2—Sr2^viii	40.08 (3)
Sr1^v—Sr1—W1^vii	143.68 (2)	Sr2^v—Sr2—Sr2^ix	89.68 (5)
Sr1^v—Sr1—W1^xiv	36.207 (13)	Sr2^v—Sr2—Sr2^x	139.50 (4)
Sr1^v—Sr1—W1^xv	89.90 (5)	Sr2^v—Sr2—W1^vii	129.17 (2)
Sr1^v—Sr1—O1a^i	60.00 (2)	Sr2^v—Sr2—W1^xiv	50.09 (2)
Sr1^v—Sr1—O1a	120.00 (2)	Sr2^v—Sr2—W1^xv	89.52 (5)
Sr1^v—Sr1—O1b	55.77 (10)	Sr2^v—Sr2—W1^viii	90.03 (3)
Sr1^v—Sr1—O1b^iii	116.33 (9)	Sr2^v—Sr2—W1^xvi	144.58 (3)
Sr1^v—Sr1—O1b^vii	174.81 (9)	Sr2^v—Sr2—W1^xvii	35.73 (2)
Sr1^v—Sr1—O1b^xiv	4.41 (7)	Sr2^v—Sr2—W1^xviii	90.26 (6)
Sr1^v—Sr1—O2a	56.60 (14)	Sr2^v—Sr2—O1a^x	117.78 (6)
Sr1^v—Sr1—O2a^vii	119.50 (14)	Sr2^v—Sr2—O1b^viii	60.95 (10)
Sr1^v—Sr1—O2b	55.30 (15)	Sr2^v—Sr2—O1b^xviii	94.24 (8)
Sr1^v—Sr1—O2b^vii	94.90 (15)	Sr2^v—Sr2—O2a^vii	119.45 (17)
Sr1^v—Sr1—O2c^iv	119.44 (15)	Sr2^v—Sr2—O2a^xvii	59.8 (2)
Sr1^v—Sr1—O2c^xv	93.61 (15)	Sr2^v—Sr2—O2a^xviii	119.42 (18)
Sr1^vi—Sr1—Sr2	89.74 (3)	Sr2^v—Sr2—O2b	54.93 (14)
Sr1^vi—Sr1—Sr2^vii	89.58 (3)	Sr2^v—Sr2—O2b^viii	61.16 (14)
Sr1^vi—Sr1—Sr2^viii	46.33 (2)	Sr2^v—Sr2—O2b^ix	120.47 (11)
Sr1^vi—Sr1—Sr2^ix	133.23 (3)	Sr2^v—Sr2—O2c^xv	93.13 (17)
Sr1^vi—Sr1—Sr2^x	89.70 (4)	Sr2^v—Sr2—O2c^xvi	173.48 (9)
Sr1^vi—Sr1—Sr2^xi	133.06 (2)	Sr2^v—Sr2—O2c^xvii	5.81 (8)
Sr1^vi—Sr1—Sr2^xii	89.86 (4)	Sr2^vi—Sr2—Sr2^viii	40.53 (3)
Sr1^vi—Sr1—Sr2^xiii	46.73 (3)	Sr2^vi—Sr2—Sr2^ix	139.43 (4)
Sr1^vi—Sr1—W1	36.32 (2)	Sr2^vi—Sr2—Sr2^x	89.97 (6)
Sr1^vi—Sr1—W1^iii	143.793 (14)	Sr2^vi—Sr2—W1^vii	130.00 (2)
Sr1^vi—Sr1—W1^iv	90.10 (5)	Sr2^vi—Sr2—W1^xiv	90.15 (5)
Sr1^vi—Sr1—W1^vii	143.62 (2)	Sr2^vi—Sr2—W1^xv	50.24 (2)
Sr1^vi—Sr1—W1^xiv	89.87 (5)	Sr2^vi—Sr2—W1^viii	89.58 (3)
Sr1^vi—Sr1—W1^xv	36.224 (13)	Sr2^vi—Sr2—W1^xvi	143.75 (3)
Sr1^vi—Sr1—O1a^i	120.00 (2)	Sr2^vi—Sr2—W1^xvii	89.77 (6)
Sr1^vi—Sr1—O1a	60.00 (2)	Sr2^vi—Sr2—W1^xviii	35.99 (2)
Sr1^vi—Sr1—O1b	5.19 (8)	Sr2^vi—Sr2—O1a^x	118.32 (6)
Sr1^vi—Sr1—O1b^iii	175.59 (7)	Sr2^vi—Sr2—O1b^viii	84.82 (10)
Sr1^vi—Sr1—O1b^vii	124.23 (10)	Sr2^vi—Sr2—O1b^xviii	62.67 (8)
Sr1^vi—Sr1—O1b^xiv	63.67 (9)	Sr2^vi—Sr2—O2a^vii	124.76 (17)
Sr1^vi—Sr1—O2a	60.50 (14)	Sr2^vi—Sr2—O2a^xvii	119.3 (2)
Sr1^vi—Sr1—O2a^vii	123.40 (14)	Sr2^vi—Sr2—O2a^xviii	59.83 (17)
Sr1^vi—Sr1—O2b	85.10 (15)	Sr2^vi—Sr2—O2b	85.56 (16)
Sr1^vi—Sr1—O2b^vii	124.70 (15)	Sr2^vi—Sr2—O2b^viii	8.21 (10)
Sr1^vi—Sr1—O2c^iv	86.39 (15)	Sr2^vi—Sr2—O2b^ix	172.91 (8)
Sr1^vi—Sr1—O2c^xv	60.56 (15)	Sr2^vi—Sr2—O2c^xv	59.34 (15)
Sr2—Sr1—Sr2^vii	178.638 (18)	Sr2^vi—Sr2—O2c^xvi	120.15 (13)
Sr2—Sr1—Sr2^viii	52.54 (3)	Sr2^vi—Sr2—O2c^xvii	60.49 (12)
Sr2—Sr1—Sr2^ix	52.68 (3)	Sr2^viii—Sr2—Sr2^ix	98.90 (4)
Sr2—Sr1—Sr2^x	51.97 (3)	Sr2^viii—Sr2—Sr2^x	99.42 (4)
Sr2—Sr1—Sr2^xi	127.44 (3)	Sr2^viii—Sr2—W1^vii	109.09 (3)
Sr2—Sr1—Sr2^xii	128.49 (3)	Sr2^viii—Sr2—W1^xiv	49.79 (3)
Sr2—Sr1—Sr2^xiii	126.84 (3)	Sr2^viii—Sr2—W1^xv	49.60 (3)
Sr2—Sr1—W1	111.65 (3)	Sr2^viii—Sr2—W1^viii	118.07 (5)
Sr2—Sr1—W1^iii	112.05 (2)	Sr2^viii—Sr2—W1^xvi	172.30 (3)
Sr2—Sr1—W1^iv	110.85 (2)	Sr2^viii—Sr2—W1^xvii	75.46 (4)
Sr2—Sr1—W1^vii	68.35 (3)	Sr2^viii—Sr2—W1^xviii	76.16 (4)
Sr2—Sr1—W1^xiv	69.13 (2)	Sr2^viii—Sr2—O1a^x	151.17 (5)
Sr2—Sr1—W1^xv	67.97 (2)	Sr2^viii—Sr2—O1b^viii	96.37 (11)
Sr2—Sr1—O1a^i	90.681 (10)	Sr2^viii—Sr2—O1b^xviii	101.17 (9)
Sr2—Sr1—O1a	89.319 (10)	Sr2^viii—Sr2—O2a^vii	99.60 (19)
Sr2—Sr1—O1b	86.86 (9)	Sr2^viii—Sr2—O2a^xvii	92.8 (2)
Sr2—Sr1—O1b^iii	87.81 (8)	Sr2^viii—Sr2—O2a^xviii	92.99 (17)
Sr2—Sr1—O1b^vii	92.55 (9)	Sr2^viii—Sr2—O2b	45.21 (15)
Sr2—Sr1—O1b^xiv	92.94 (8)	Sr2^viii—Sr2—O2b^viii	47.28 (12)
Sr2—Sr1—O2a	142.93 (16)	Sr2^viii—Sr2—O2b^ix	144.88 (10)
Sr2—Sr1—O2a^vii	37.20 (16)	Sr2^viii—Sr2—O2c^xv	53.17 (16)
Sr2—Sr1—O2b	38.46 (12)	Sr2^viii—Sr2—O2c^xvi	144.76 (11)
Sr2—Sr1—O2b^vii	142.61 (12)	Sr2^viii—Sr2—O2c^xvii	44.69 (10)
Sr2—Sr1—O2c^iv	141.95 (11)	Sr2^ix—Sr2—Sr2^x	99.48 (7)
Sr2—Sr1—O2c^xv	36.81 (11)	Sr2^ix—Sr2—W1^vii	49.47 (4)
Sr2^vii—Sr1—Sr2^viii	127.44 (3)	Sr2^ix—Sr2—W1^xiv	49.45 (4)
Sr2^vii—Sr1—Sr2^ix	128.49 (3)	Sr2^ix—Sr2—W1^xv	108.88 (4)
Sr2^vii—Sr1—Sr2^x	126.84 (3)	Sr2^ix—Sr2—W1^viii	118.81 (3)
Sr2^vii—Sr1—Sr2^xi	52.54 (3)	Sr2^ix—Sr2—W1^xvi	76.46 (5)
Sr2^vii—Sr1—Sr2^xii	52.68 (3)	Sr2^ix—Sr2—W1^xvii	75.81 (6)
Sr2^vii—Sr1—Sr2^xiii	51.97 (3)	Sr2^ix—Sr2—W1^xviii	172.14 (2)
Sr2^vii—Sr1—W1	68.35 (3)	Sr2^ix—Sr2—O1a^x	98.95 (9)
Sr2^vii—Sr1—W1^iii	69.13 (2)	Sr2^ix—Sr2—O1b^viii	104.39 (9)
Sr2^vii—Sr1—W1^iv	67.97 (2)	Sr2^ix—Sr2—O1b^xviii	153.11 (8)
Sr2^vii—Sr1—W1^vii	111.65 (3)	Sr2^ix—Sr2—O2a^vii	45.60 (10)
Sr2^vii—Sr1—W1^xiv	112.05 (2)	Sr2^ix—Sr2—O2a^xvii	45.93 (15)
Sr2^vii—Sr1—W1^xv	110.85 (2)	Sr2^ix—Sr2—O2a^xviii	144.69 (15)
Sr2^vii—Sr1—O1a^i	90.681 (10)	Sr2^ix—Sr2—O2b	54.03 (15)
Sr2^vii—Sr1—O1a	89.319 (10)	Sr2^ix—Sr2—O2b^viii	145.66 (13)
Sr2^vii—Sr1—O1b	92.55 (9)	Sr2^ix—Sr2—O2b^ix	46.37 (9)
Sr2^vii—Sr1—O1b^iii	92.94 (8)	Sr2^ix—Sr2—O2c^xv	100.10 (11)
Sr2^vii—Sr1—O1b^vii	86.86 (9)	Sr2^ix—Sr2—O2c^xvi	93.09 (13)
Sr2^vii—Sr1—O1b^xiv	87.81 (8)	Sr2^ix—Sr2—O2c^xvii	92.14 (11)
Sr2^vii—Sr1—O2a	37.20 (16)	Sr2^x—Sr2—W1^vii	50.35 (4)
Sr2^vii—Sr1—O2a^vii	142.93 (16)	Sr2^x—Sr2—W1^xiv	109.38 (4)
Sr2^vii—Sr1—O2b	142.61 (12)	Sr2^x—Sr2—W1^xv	50.14 (4)
Sr2^vii—Sr1—O2b^vii	38.46 (12)	Sr2^x—Sr2—W1^viii	118.28 (3)
Sr2^vii—Sr1—O2c^iv	36.81 (11)	Sr2^x—Sr2—W1^xvi	75.58 (5)
Sr2^vii—Sr1—O2c^xv	141.95 (11)	Sr2^x—Sr2—W1^xvii	172.19 (2)
Sr2^viii—Sr1—Sr2^ix	86.90 (3)	Sr2^x—Sr2—W1^xviii	75.62 (6)
Sr2^viii—Sr1—Sr2^x	86.33 (3)	Sr2^x—Sr2—O1a^x	99.76 (9)
Sr2^viii—Sr1—Sr2^xi	179.119 (19)	Sr2^x—Sr2—O1b^viii	148.86 (9)
Sr2^viii—Sr1—Sr2^xii	93.70 (3)	Sr2^x—Sr2—O1b^xviii	94.71 (8)
Sr2^viii—Sr1—Sr2^xiii	93.06 (3)	Sr2^x—Sr2—O2a^vii	54.19 (11)
Sr2^viii—Sr1—W1	59.11 (3)	Sr2^x—Sr2—O2a^xvii	144.96 (17)
Sr2^viii—Sr1—W1^iii	126.87 (3)	Sr2^x—Sr2—O2a^xviii	45.56 (14)
Sr2^viii—Sr1—W1^iv	125.94 (3)	Sr2^x—Sr2—O2b	99.78 (11)
Sr2^viii—Sr1—W1^vii	120.89 (3)	Sr2^x—Sr2—O2b^viii	93.13 (12)
Sr2^viii—Sr1—W1^xiv	54.02 (3)	Sr2^x—Sr2—O2b^ix	92.76 (12)
Sr2^viii—Sr1—W1^xv	53.17 (3)	Sr2^x—Sr2—O2c^xv	46.51 (16)
Sr2^viii—Sr1—O1a^i	90.441 (11)	Sr2^x—Sr2—O2c^xvi	45.69 (10)
Sr2^viii—Sr1—O1a	89.559 (11)	Sr2^x—Sr2—O2c^xvii	143.83 (11)
Sr2^viii—Sr1—O1b	41.60 (9)	W1^vii—Sr2—W1^xiv	79.088 (18)
Sr2^viii—Sr1—O1b^iii	129.59 (7)	W1^vii—Sr2—W1^xv	79.759 (18)
Sr2^viii—Sr1—O1b^vii	137.83 (9)	W1^vii—Sr2—W1^viii	132.85 (5)
Sr2^viii—Sr1—O1b^xiv	51.04 (7)	W1^vii—Sr2—W1^xvi	63.22 (3)
Sr2^viii—Sr1—O2a	90.47 (16)	W1^vii—Sr2—W1^xvii	125.28 (3)
Sr2^viii—Sr1—O2a^vii	89.58 (16)	W1^vii—Sr2—W1^xviii	125.97 (3)
Sr2^viii—Sr1—O2b	39.02 (15)	W1^vii—Sr2—O1a^x	99.73 (5)
Sr2^viii—Sr1—O2b^vii	141.67 (15)	W1^vii—Sr2—O1b^viii	145.10 (10)
Sr2^viii—Sr1—O2c^iv	132.53 (15)	W1^vii—Sr2—O1b^xviii	136.24 (8)
Sr2^viii—Sr1—O2c^xv	46.80 (15)	W1^vii—Sr2—O2a^vii	10.19 (18)
Sr2^ix—Sr1—Sr2^x	86.72 (5)	W1^vii—Sr2—O2a^xvii	94.62 (16)
Sr2^ix—Sr1—Sr2^xi	93.70 (3)	W1^vii—Sr2—O2a^xviii	95.23 (14)
Sr2^ix—Sr1—Sr2^xii	93.92 (6)	W1^vii—Sr2—O2b	75.06 (15)
Sr2^ix—Sr1—Sr2^xiii	179.36 (2)	W1^vii—Sr2—O2b^viii	136.65 (9)
Sr2^ix—Sr1—W1	126.52 (3)	W1^vii—Sr2—O2b^ix	56.00 (9)
Sr2^ix—Sr1—W1^iii	59.36 (4)	W1^vii—Sr2—O2c^xv	70.72 (15)
Sr2^ix—Sr1—W1^iv	126.08 (4)	W1^vii—Sr2—O2c^xvi	56.41 (10)
Sr2^ix—Sr1—W1^vii	53.54 (3)	W1^vii—Sr2—O2c^xvii	134.01 (8)
Sr2^ix—Sr1—W1^xiv	53.94 (4)	W1^xiv—Sr2—W1^xv	79.25 (5)
Sr2^ix—Sr1—W1^xv	120.66 (3)	W1^xiv—Sr2—W1^viii	132.34 (3)
Sr2^ix—Sr1—O1a^i	46.96 (3)	W1^xiv—Sr2—W1^xvi	125.90 (4)
Sr2^ix—Sr1—O1a	133.04 (3)	W1^xiv—Sr2—W1^xvii	62.81 (4)
Sr2^ix—Sr1—O1b	128.43 (9)	W1^xiv—Sr2—W1^xviii	125.94 (6)
Sr2^ix—Sr1—O1b^iii	42.73 (8)	W1^xiv—Sr2—O1a^x	139.25 (10)
Sr2^ix—Sr1—O1b^vii	88.28 (10)	W1^xiv—Sr2—O1b^viii	101.33 (10)
Sr2^ix—Sr1—O1b^xiv	88.80 (9)	W1^xiv—Sr2—O1b^xviii	143.93 (9)
Sr2^ix—Sr1—O2a	133.47 (10)	W1^xiv—Sr2—O2a^vii	69.45 (16)
Sr2^ix—Sr1—O2a^vii	39.88 (10)	W1^xiv—Sr2—O2a^xvii	56.18 (17)
Sr2^ix—Sr1—O2b	48.35 (16)	W1^xiv—Sr2—O2a^xviii	135.43 (16)
Sr2^ix—Sr1—O2b^vii	90.25 (12)	W1^xiv—Sr2—O2b	10.61 (9)
Sr2^ix—Sr1—O2c^iv	140.17 (16)	W1^xiv—Sr2—O2b^viii	96.23 (13)
Sr2^ix—Sr1—O2c^xv	89.37 (12)	W1^xiv—Sr2—O2b^ix	95.10 (10)
Sr2^x—Sr1—Sr2^xi	93.06 (3)	W1^xiv—Sr2—O2c^xv	75.07 (12)
Sr2^x—Sr1—Sr2^xii	179.36 (2)	W1^xiv—Sr2—O2c^xvi	135.32 (10)
Sr2^x—Sr1—Sr2^xiii	92.64 (6)	W1^xiv—Sr2—O2c^xvii	55.06 (8)
Sr2^x—Sr1—W1	126.02 (3)	W1^xv—Sr2—W1^viii	132.30 (3)
Sr2^x—Sr1—W1^iii	126.50 (4)	W1^xv—Sr2—W1^xvi	125.72 (4)
Sr2^x—Sr1—W1^iv	58.88 (4)	W1^xv—Sr2—W1^xvii	125.06 (6)
Sr2^x—Sr1—W1^vii	53.93 (3)	W1^xv—Sr2—W1^xviii	63.26 (4)
Sr2^x—Sr1—W1^xiv	121.10 (3)	W1^xv—Sr2—O1a^x	141.16 (10)
Sr2^x—Sr1—W1^xv	53.48 (4)	W1^xv—Sr2—O1b^viii	134.98 (10)
Sr2^x—Sr1—O1a^i	133.68 (3)	W1^xv—Sr2—O1b^xviii	97.75 (9)
Sr2^x—Sr1—O1a	46.32 (3)	W1^xv—Sr2—O2a^vii	75.21 (15)
Sr2^x—Sr1—O1b	91.32 (10)	W1^xv—Sr2—O2a^xvii	135.20 (18)
Sr2^x—Sr1—O1b^iii	91.68 (9)	W1^xv—Sr2—O2a^xviii	56.35 (15)
Sr2^x—Sr1—O1b^vii	51.56 (9)	W1^xv—Sr2—O2b	69.01 (11)
Sr2^x—Sr1—O1b^xiv	137.33 (8)	W1^xv—Sr2—O2b^viii	57.20 (9)
Sr2^x—Sr1—O2a	139.48 (10)	W1^xv—Sr2—O2b^ix	135.53 (9)
Sr2^x—Sr1—O2a^vii	47.17 (10)	W1^xv—Sr2—O2c^xv	9.50 (13)
Sr2^x—Sr1—O2b	90.18 (12)	W1^xv—Sr2—O2c^xvi	95.17 (11)
Sr2^x—Sr1—O2b^vii	131.68 (16)	W1^xv—Sr2—O2c^xvii	93.69 (11)
Sr2^x—Sr1—O2c^iv	90.13 (12)	W1^viii—Sr2—W1^xvi	69.63 (3)
Sr2^x—Sr1—O2c^xv	39.80 (16)	W1^viii—Sr2—W1^xvii	69.526 (19)
Sr2^xi—Sr1—Sr2^xii	86.90 (3)	W1^viii—Sr2—W1^xviii	69.049 (19)
Sr2^xi—Sr1—Sr2^xiii	86.33 (3)	W1^viii—Sr2—O1a^x	33.123 (16)
Sr2^xi—Sr1—W1	120.89 (3)	W1^viii—Sr2—O1b^viii	31.30 (9)
Sr2^xi—Sr1—W1^iii	54.02 (3)	W1^viii—Sr2—O1b^xviii	34.79 (8)
Sr2^xi—Sr1—W1^iv	53.17 (3)	W1^viii—Sr2—O2a^vii	142.1 (2)
Sr2^xi—Sr1—W1^vii	59.11 (3)	W1^viii—Sr2—O2a^xvii	83.14 (15)
Sr2^xi—Sr1—W1^xiv	126.87 (3)	W1^viii—Sr2—O2a^xviii	83.16 (13)
Sr2^xi—Sr1—W1^xv	125.94 (3)	W1^viii—Sr2—O2b	141.64 (12)
Sr2^xi—Sr1—O1a^i	90.441 (11)	W1^viii—Sr2—O2b^viii	81.41 (10)
Sr2^xi—Sr1—O1a	89.559 (11)	W1^viii—Sr2—O2b^ix	83.36 (8)
Sr2^xi—Sr1—O1b	137.83 (9)	W1^viii—Sr2—O2c^xv	140.99 (11)
Sr2^xi—Sr1—O1b^iii	51.04 (7)	W1^viii—Sr2—O2c^xvi	83.46 (9)
Sr2^xi—Sr1—O1b^vii	41.60 (9)	W1^viii—Sr2—O2c^xvii	84.24 (8)
Sr2^xi—Sr1—O1b^xiv	129.59 (7)	W1^xvi—Sr2—W1^xvii	108.85 (3)
Sr2^xi—Sr1—O2a	89.58 (16)	W1^xvi—Sr2—W1^xviii	107.76 (3)
Sr2^xi—Sr1—O2a^vii	90.47 (16)	W1^xvi—Sr2—O1a^x	36.53 (2)
Sr2^xi—Sr1—O2b	141.67 (15)	W1^xvi—Sr2—O1b^viii	90.77 (10)
Sr2^xi—Sr1—O2b^vii	39.02 (15)	W1^xvi—Sr2—O1b^xviii	85.22 (8)
Sr2^xi—Sr1—O2c^iv	46.80 (15)	W1^xvi—Sr2—O2a^vii	72.7 (2)
Sr2^xi—Sr1—O2c^xv	132.53 (15)	W1^xvi—Sr2—O2a^xvii	88.3 (2)
Sr2^xii—Sr1—Sr2^xiii	86.72 (5)	W1^xvi—Sr2—O2a^xviii	87.62 (18)
Sr2^xii—Sr1—W1	53.54 (3)	W1^xvi—Sr2—O2b	129.16 (16)
Sr2^xii—Sr1—W1^iii	53.94 (4)	W1^xvi—Sr2—O2b^viii	137.84 (12)
Sr2^xii—Sr1—W1^iv	120.66 (3)	W1^xvi—Sr2—O2b^ix	31.85 (10)
Sr2^xii—Sr1—W1^vii	126.52 (3)	W1^xvi—Sr2—O2c^xv	121.10 (17)
Sr2^xii—Sr1—W1^xiv	59.36 (4)	W1^xvi—Sr2—O2c^xvi	31.52 (12)
Sr2^xii—Sr1—W1^xv	126.08 (4)	W1^xvi—Sr2—O2c^xvii	140.59 (11)
Sr2^xii—Sr1—O1a^i	46.96 (3)	W1^xvii—Sr2—W1^xviii	108.35 (7)
Sr2^xii—Sr1—O1a	133.04 (3)	W1^xvii—Sr2—O1a^x	87.22 (8)
Sr2^xii—Sr1—O1b	88.28 (10)	W1^xvii—Sr2—O1b^viii	38.81 (9)
Sr2^xii—Sr1—O1b^iii	88.80 (9)	W1^xvii—Sr2—O1b^xviii	92.10 (8)
Sr2^xii—Sr1—O1b^vii	128.43 (9)	W1^xvii—Sr2—O2a^vii	120.26 (11)
Sr2^xii—Sr1—O1b^xiv	42.73 (8)	W1^xvii—Sr2—O2a^xvii	31.81 (17)
Sr2^xii—Sr1—O2a	39.88 (10)	W1^xvii—Sr2—O2a^xviii	139.50 (15)
Sr2^xii—Sr1—O2a^vii	133.47 (10)	W1^xvii—Sr2—O2b	72.42 (11)
Sr2^xii—Sr1—O2b	90.25 (12)	W1^xvii—Sr2—O2b^viii	87.67 (13)
Sr2^xii—Sr1—O2b^vii	48.35 (16)	W1^xvii—Sr2—O2b^ix	88.40 (11)
Sr2^xii—Sr1—O2c^iv	89.37 (12)	W1^xvii—Sr2—O2c^xv	127.55 (16)
Sr2^xii—Sr1—O2c^xv	140.17 (16)	W1^xvii—Sr2—O2c^xvi	139.77 (11)
Sr2^xiii—Sr1—W1	53.93 (3)	W1^xvii—Sr2—O2c^xvii	32.22 (11)
Sr2^xiii—Sr1—W1^iii	121.10 (3)	W1^xviii—Sr2—O1a^x	88.03 (8)
Sr2^xiii—Sr1—W1^iv	53.48 (4)	W1^xviii—Sr2—O1b^viii	82.41 (9)
Sr2^xiii—Sr1—W1^vii	126.02 (3)	W1^xviii—Sr2—O1b^xviii	34.68 (8)
Sr2^xiii—Sr1—W1^xiv	126.50 (4)	W1^xviii—Sr2—O2a^vii	128.56 (11)
Sr2^xiii—Sr1—W1^xv	58.88 (4)	W1^xviii—Sr2—O2a^xvii	139.40 (17)
Sr2^xiii—Sr1—O1a^i	133.68 (3)	W1^xviii—Sr2—O2a^xviii	31.73 (15)
Sr2^xiii—Sr1—O1a	46.32 (3)	W1^xviii—Sr2—O2b	120.19 (15)
Sr2^xiii—Sr1—O1b	51.56 (9)	W1^xviii—Sr2—O2b^viii	30.98 (12)
Sr2^xiii—Sr1—O1b^iii	137.33 (8)	W1^xviii—Sr2—O2b^ix	138.95 (10)
Sr2^xiii—Sr1—O1b^vii	91.32 (10)	W1^xviii—Sr2—O2c^xv	72.06 (11)
Sr2^xiii—Sr1—O1b^xiv	91.68 (9)	W1^xviii—Sr2—O2c^xvi	87.81 (12)
Sr2^xiii—Sr1—O2a	47.17 (10)	W1^xviii—Sr2—O2c^xvii	88.54 (12)
Sr2^xiii—Sr1—O2a^vii	139.48 (10)	O1a^x—Sr2—O1b^viii	57.19 (10)
Sr2^xiii—Sr1—O2b	131.68 (16)	O1a^x—Sr2—O1b^xviii	55.93 (10)
Sr2^xiii—Sr1—O2b^vii	90.18 (12)	O1a^x—Sr2—O2a^vii	109.1 (2)
Sr2^xiii—Sr1—O2c^iv	39.80 (16)	O1a^x—Sr2—O2a^xvii	83.6 (2)
Sr2^xiii—Sr1—O2c^xv	90.13 (12)	O1a^x—Sr2—O2a^xviii	85.32 (18)
W1—Sr1—W1^iii	107.47 (2)	O1a^x—Sr2—O2b	148.95 (15)
W1—Sr1—W1^iv	107.40 (2)	O1a^x—Sr2—O2b^viii	110.26 (12)
W1—Sr1—W1^xiv	72.586 (19)	O1a^x—Sr2—O2b^ix	54.75 (10)
W1—Sr1—W1^xv	72.547 (19)	O1a^x—Sr2—O2c^xv	143.56 (16)
W1—Sr1—O1a^i	90.033 (10)	O1a^x—Sr2—O2c^xvi	55.94 (11)
W1—Sr1—O1a	89.967 (10)	O1a^x—Sr2—O2c^xvii	112.17 (11)
W1—Sr1—O1b	35.09 (10)	O1b^viii—Sr2—O1b^xviii	55.78 (12)
W1—Sr1—O1b^iii	142.17 (8)	O1b^viii—Sr2—O2a^vii	147.78 (16)
W1—Sr1—O1b^vii	144.86 (10)	O1b^viii—Sr2—O2a^xvii	59.79 (16)
W1—Sr1—O1b^xiv	37.89 (8)	O1b^viii—Sr2—O2a^xviii	107.17 (15)
W1—Sr1—O2a	31.50 (16)	O1b^viii—Sr2—O2b	110.35 (15)
W1—Sr1—O2a^vii	148.50 (16)	O1b^viii—Sr2—O2b^viii	78.24 (13)
W1—Sr1—O2b	86.50 (16)	O1b^viii—Sr2—O2b^ix	89.48 (12)
W1—Sr1—O2b^vii	93.54 (16)	O1b^viii—Sr2—O2c^xv	143.68 (19)
W1—Sr1—O2c^iv	86.43 (16)	O1b^viii—Sr2—O2c^xvi	112.59 (13)
W1—Sr1—O2c^xv	93.53 (16)	O1b^viii—Sr2—O2c^xvii	55.21 (13)
W1^iii—Sr1—W1^iv	107.19 (5)	O1b^xviii—Sr2—O2a^vii	145.08 (16)
W1^iii—Sr1—W1^vii	72.586 (19)	O1b^xviii—Sr2—O2a^xvii	115.05 (16)
W1^iii—Sr1—W1^xiv	72.85 (5)	O1b^xviii—Sr2—O2a^xviii	51.54 (14)
W1^iii—Sr1—O1a^i	36.43 (3)	O1b^xviii—Sr2—O2b	145.03 (19)
W1^iii—Sr1—O1a	143.57 (3)	O1b^xviii—Sr2—O2b^viii	54.86 (13)
W1^iii—Sr1—O1b	141.97 (9)	O1b^xviii—Sr2—O2b^ix	110.55 (12)
W1^iii—Sr1—O1b^iii	35.12 (8)	O1b^xviii—Sr2—O2c^xv	106.22 (13)
W1^iii—Sr1—O1b^vii	84.82 (10)	O1b^xviii—Sr2—O2c^xvi	80.65 (13)
W1^iii—Sr1—O1b^xiv	85.83 (9)	O1b^xviii—Sr2—O2c^xvii	89.67 (12)
W1^iii—Sr1—O2a	86.71 (12)	O2a^vii—Sr2—O2a^xvii	91.53 (18)
W1^iii—Sr1—O2a^vii	87.93 (12)	O2a^vii—Sr2—O2a^xviii	99.75 (17)
W1^iii—Sr1—O2b	94.40 (12)	O2a^vii—Sr2—O2b	65.0 (2)
W1^iii—Sr1—O2b^vii	31.22 (10)	O2a^vii—Sr2—O2b^viii	132.26 (19)
W1^iii—Sr1—O2c^iv	92.26 (12)	O2a^vii—Sr2—O2b^ix	61.82 (19)
W1^iii—Sr1—O2c^xv	148.54 (12)	O2a^vii—Sr2—O2c^xv	65.8 (2)
W1^iv—Sr1—W1^vii	72.547 (19)	O2a^vii—Sr2—O2c^xvi	66.3 (2)
W1^iv—Sr1—W1^xv	72.78 (5)	O2a^vii—Sr2—O2c^xvii	124.50 (18)
W1^iv—Sr1—O1a^i	143.61 (3)	O2a^xvii—Sr2—O2a^xviii	166.29 (19)
W1^iv—Sr1—O1a	36.39 (3)	O2a^xvii—Sr2—O2b	66.6 (2)
W1^iv—Sr1—O1b	95.15 (10)	O2a^xvii—Sr2—O2b^viii	118.6 (2)
W1^iv—Sr1—O1b^iii	94.20 (9)	O2a^xvii—Sr2—O2b^ix	60.6 (2)
W1^iv—Sr1—O1b^vii	38.05 (9)	O2a^xvii—Sr2—O2c^xv	131.1 (2)
W1^iv—Sr1—O1b^xiv	144.87 (8)	O2a^xvii—Sr2—O2c^xvi	118.6 (2)
W1^iv—Sr1—O2a	92.08 (12)	O2a^xvii—Sr2—O2c^xvii	58.8 (2)
W1^iv—Sr1—O2a^vii	93.29 (12)	O2a^xviii—Sr2—O2b	125.35 (18)
W1^iv—Sr1—O2b	148.75 (10)	O2a^xviii—Sr2—O2b^viii	58.3 (2)
W1^iv—Sr1—O2b^vii	85.64 (12)	O2a^xviii—Sr2—O2b^ix	118.3 (2)
W1^iv—Sr1—O2c^iv	31.48 (12)	O2a^xviii—Sr2—O2c^xv	61.60 (17)
W1^iv—Sr1—O2c^xv	87.71 (12)	O2a^xviii—Sr2—O2c^xvi	60.3 (2)
W1^vii—Sr1—W1^xiv	107.47 (2)	O2a^xviii—Sr2—O2c^xvii	118.8 (2)
W1^vii—Sr1—W1^xv	107.40 (2)	O2b—Sr2—O2b^viii	92.5 (2)
W1^vii—Sr1—O1a^i	90.033 (10)	O2b—Sr2—O2b^ix	100.40 (17)
W1^vii—Sr1—O1a	89.967 (10)	O2b—Sr2—O2c^xv	64.53 (15)
W1^vii—Sr1—O1b	144.86 (10)	O2b—Sr2—O2c^xvi	131.15 (17)
W1^vii—Sr1—O1b^iii	37.89 (8)	O2b—Sr2—O2c^xvii	60.39 (16)
W1^vii—Sr1—O1b^vii	35.09 (10)	O2b^viii—Sr2—O2b^ix	164.70 (12)
W1^vii—Sr1—O1b^xiv	142.17 (8)	O2b^viii—Sr2—O2c^xv	66.51 (17)
W1^vii—Sr1—O2a	148.50 (16)	O2b^viii—Sr2—O2c^xvi	117.94 (18)
W1^vii—Sr1—O2a^vii	31.50 (16)	O2b^viii—Sr2—O2c^xvii	60.70 (17)
W1^vii—Sr1—O2b	93.54 (16)	O2b^ix—Sr2—O2c^xv	126.70 (18)
W1^vii—Sr1—O2b^vii	86.50 (16)	O2b^ix—Sr2—O2c^xvi	58.46 (17)
W1^vii—Sr1—O2c^iv	93.53 (16)	O2b^ix—Sr2—O2c^xvii	119.16 (16)
W1^vii—Sr1—O2c^xv	86.43 (16)	O2c^xv—Sr2—O2c^xvi	92.20 (19)
W1^xiv—Sr1—W1^xv	107.19 (5)	O2c^xv—Sr2—O2c^xvii	97.9 (2)
W1^xiv—Sr1—O1a^i	36.43 (3)	O2c^xvi—Sr2—O2c^xvii	167.67 (12)
W1^xiv—Sr1—O1a	143.57 (3)	Sr1—W1—Sr1^v	107.40 (2)
W1^xiv—Sr1—O1b	84.82 (10)	Sr1—W1—Sr1^vi	107.47 (2)
W1^xiv—Sr1—O1b^iii	85.83 (9)	Sr1—W1—Sr2^vii	64.19 (3)
W1^xiv—Sr1—O1b^vii	141.97 (9)	Sr1—W1—Sr2^xiv	126.68 (3)
W1^xiv—Sr1—O1b^xiv	35.12 (8)	Sr1—W1—Sr2^xv	126.14 (3)
W1^xiv—Sr1—O2a	87.93 (12)	Sr1—W1—Sr2^viii	68.66 (3)
W1^xiv—Sr1—O2a^vii	86.71 (12)	Sr1—W1—Sr2^xix	178.923 (15)
W1^xiv—Sr1—O2b	31.22 (10)	Sr1—W1—Sr2^xii	72.05 (3)
W1^xiv—Sr1—O2b^vii	94.40 (12)	Sr1—W1—Sr2^xiii	72.36 (3)
W1^xiv—Sr1—O2c^iv	148.54 (12)	Sr1—W1—O1a^v	120.31 (2)
W1^xiv—Sr1—O2c^xv	92.26 (12)	Sr1—W1—O1b	47.64 (11)
W1^xv—Sr1—O1a^i	143.61 (3)	Sr1—W1—O1b^xiv	60.11 (11)
W1^xv—Sr1—O1a	36.39 (3)	Sr1—W1—O2a	50.6 (2)
W1^xv—Sr1—O1b	38.05 (9)	Sr1—W1—O2b^xv	118.8 (2)
W1^xv—Sr1—O1b^iii	144.87 (8)	Sr1—W1—O2c	131.5 (2)
W1^xv—Sr1—O1b^vii	95.15 (10)	Sr1^v—W1—Sr1^vi	107.19 (5)
W1^xv—Sr1—O1b^xiv	94.20 (9)	Sr1^v—W1—Sr2^vii	126.89 (3)
W1^xv—Sr1—O2a	93.29 (12)	Sr1^v—W1—Sr2^xiv	64.28 (4)
W1^xv—Sr1—O2a^vii	92.08 (12)	Sr1^v—W1—Sr2^xv	126.28 (4)
W1^xv—Sr1—O2b	85.64 (12)	Sr1^v—W1—Sr2^viii	68.80 (2)
W1^xv—Sr1—O2b^vii	148.75 (10)	Sr1^v—W1—Sr2^xix	72.47 (2)
W1^xv—Sr1—O2c^iv	87.71 (12)	Sr1^v—W1—Sr2^xii	72.49 (6)
W1^xv—Sr1—O2c^xv	31.48 (12)	Sr1^v—W1—Sr2^xiii	178.910 (10)
O1a^i—Sr1—O1a	180.0 (5)	Sr1^v—W1—O1a^v	55.11 (14)
O1a^i—Sr1—O1b	115.68 (9)	Sr1^v—W1—O1b	113.61 (11)
O1a^i—Sr1—O1b^iii	56.39 (8)	Sr1^v—W1—O1b^xiv	47.74 (11)
O1a^i—Sr1—O1b^vii	115.68 (9)	Sr1^v—W1—O2a	120.88 (15)
O1a^i—Sr1—O1b^xiv	56.39 (8)	Sr1^v—W1—O2b^xv	132.4 (2)
O1a^i—Sr1—O2a	86.67 (10)	Sr1^v—W1—O2c	51.82 (13)
O1a^i—Sr1—O2a^vii	86.67 (10)	Sr1^vi—W1—Sr2^vii	125.66 (3)
O1a^i—Sr1—O2b	61.07 (10)	Sr1^vi—W1—Sr2^xiv	125.60 (4)
O1a^i—Sr1—O2b^vii	61.07 (10)	Sr1^vi—W1—Sr2^xv	63.57 (4)
O1a^i—Sr1—O2c^iv	123.68 (10)	Sr1^vi—W1—Sr2^viii	68.00 (2)
O1a^i—Sr1—O2c^xv	123.68 (10)	Sr1^vi—W1—Sr2^xix	71.62 (2)
O1a—Sr1—O1b	64.32 (9)	Sr1^vi—W1—Sr2^xii	179.242 (14)
O1a—Sr1—O1b^iii	123.61 (8)	Sr1^vi—W1—Sr2^xiii	71.96 (6)
O1a—Sr1—O1b^vii	64.32 (9)	Sr1^vi—W1—O1a^v	52.08 (14)
O1a—Sr1—O1b^xiv	123.61 (8)	Sr1^vi—W1—O1b	60.36 (12)
O1a—Sr1—O2a	93.33 (10)	Sr1^vi—W1—O1b^xiv	125.92 (11)
O1a—Sr1—O2a^vii	93.33 (10)	Sr1^vi—W1—O2a	130.84 (15)
O1a—Sr1—O2b	118.93 (10)	Sr1^vi—W1—O2b^xv	49.60 (14)
O1a—Sr1—O2b^vii	118.93 (10)	Sr1^vi—W1—O2c	120.2 (2)
O1a—Sr1—O2c^iv	56.32 (10)	Sr2^vii—W1—Sr2^xiv	79.76 (3)
O1a—Sr1—O2c^xv	56.32 (10)	Sr2^vii—W1—Sr2^xv	79.09 (3)
O1b—Sr1—O1b^iii	170.40 (11)	Sr2^vii—W1—Sr2^viii	132.83 (4)
O1b—Sr1—O1b^vii	128.64 (13)	Sr2^vii—W1—Sr2^xix	116.78 (3)
O1b—Sr1—O1b^xiv	59.58 (12)	Sr2^vii—W1—Sr2^xii	54.72 (3)
O1b—Sr1—O2a	61.58 (17)	Sr2^vii—W1—Sr2^xiii	54.03 (3)
O1b—Sr1—O2a^vii	121.76 (17)	Sr2^vii—W1—O1a^v	175.02 (6)
O1b—Sr1—O2b	80.17 (18)	Sr2^vii—W1—O1b	97.93 (10)
O1b—Sr1—O2b^vii	126.16 (18)	Sr2^vii—W1—O1b^xiv	97.41 (10)
O1b—Sr1—O2c^iv	91.31 (18)	Sr2^vii—W1—O2a	14.8 (2)
O1b—Sr1—O2c^xv	59.77 (18)	Sr2^vii—W1—O2b^xv	85.7 (2)
O1b^iii—Sr1—O1b^vii	59.58 (12)	Sr2^vii—W1—O2c	92.79 (19)
O1b^iii—Sr1—O1b^xiv	112.79 (12)	Sr2^xiv—W1—Sr2^xv	79.25 (5)
O1b^iii—Sr1—O2a	120.21 (16)	Sr2^xiv—W1—Sr2^viii	133.07 (3)
O1b^iii—Sr1—O2a^vii	55.42 (16)	Sr2^xiv—W1—Sr2^xix	54.28 (3)
O1b^iii—Sr1—O2b	90.71 (17)	Sr2^xiv—W1—Sr2^xii	54.94 (4)
O1b^iii—Sr1—O2b^vii	56.78 (16)	Sr2^xiv—W1—Sr2^xiii	116.74 (4)
O1b^iii—Sr1—O2c^iv	97.80 (17)	Sr2^xiv—W1—O1a^v	98.13 (9)
O1b^iii—Sr1—O2c^xv	118.57 (17)	Sr2^xiv—W1—O1b	173.84 (12)
O1b^vii—Sr1—O1b^xiv	170.40 (11)	Sr2^xiv—W1—O1b^xiv	89.37 (12)
O1b^vii—Sr1—O2a	121.76 (17)	Sr2^xiv—W1—O2a	86.8 (2)
O1b^vii—Sr1—O2a^vii	61.58 (17)	Sr2^xiv—W1—O2b^xv	94.59 (17)
O1b^vii—Sr1—O2b	126.16 (18)	Sr2^xiv—W1—O2c	13.66 (16)
O1b^vii—Sr1—O2b^vii	80.17 (18)	Sr2^xv—W1—Sr2^viii	131.57 (3)
O1b^vii—Sr1—O2c^iv	59.77 (18)	Sr2^xv—W1—Sr2^xix	54.10 (3)
O1b^vii—Sr1—O2c^xv	91.31 (18)	Sr2^xv—W1—Sr2^xii	117.18 (4)
O1b^xiv—Sr1—O2a	55.42 (16)	Sr2^xv—W1—Sr2^xiii	54.06 (4)
O1b^xiv—Sr1—O2a^vii	120.21 (16)	Sr2^xv—W1—O1a^v	96.11 (10)
O1b^xiv—Sr1—O2b	56.78 (16)	Sr2^xv—W1—O1b	106.02 (13)
O1b^xiv—Sr1—O2b^vii	90.71 (17)	Sr2^xv—W1—O1b^xiv	168.50 (11)
O1b^xiv—Sr1—O2c^iv	118.57 (17)	Sr2^xv—W1—O2a	93.2 (2)
O1b^xiv—Sr1—O2c^xv	97.80 (17)	Sr2^xv—W1—O2b^xv	15.86 (14)
O2a—Sr1—O2a^vii	173.33 (14)	Sr2^xv—W1—O2c	85.63 (16)
O2a—Sr1—O2b	111.9 (2)	Sr2^viii—W1—Sr2^xix	110.36 (4)
O2a—Sr1—O2b^vii	64.6 (2)	Sr2^viii—W1—Sr2^xii	111.25 (2)
O2a—Sr1—O2c^iv	63.2 (2)	Sr2^viii—W1—Sr2^xiii	110.17 (2)
O2a—Sr1—O2c^xv	121.1 (2)	Sr2^viii—W1—O1a^v	51.66 (3)
O2a^vii—Sr1—O2b	64.6 (2)	Sr2^viii—W1—O1b	45.37 (11)
O2a^vii—Sr1—O2b^vii	111.9 (2)	Sr2^viii—W1—O1b^xiv	58.41 (11)
O2a^vii—Sr1—O2c^iv	121.1 (2)	Sr2^viii—W1—O2a	119.0 (2)
O2a^vii—Sr1—O2c^xv	63.2 (2)	Sr2^viii—W1—O2b^xv	116.99 (13)
O2b—Sr1—O2b^vii	122.14 (15)	Sr2^viii—W1—O2c	120.20 (14)
O2b—Sr1—O2c^iv	171.5 (2)	Sr2^xix—W1—Sr2^xii	108.85 (3)
O2b—Sr1—O2c^xv	63.10 (14)	Sr2^xix—W1—Sr2^xiii	107.76 (3)
O2b^vii—Sr1—O2c^iv	63.10 (14)	Sr2^xix—W1—O1a^v	58.71 (3)
O2b^vii—Sr1—O2c^xv	171.5 (2)	Sr2^xix—W1—O1b	131.38 (11)
O2c^iv—Sr1—O2c^xv	112.64 (14)	Sr2^xix—W1—O1b^xiv	119.87 (11)
Sr1—Sr2—Sr1^viii	127.46 (4)	Sr2^xix—W1—O2a	130.4 (2)
Sr1—Sr2—Sr1^ix	127.32 (3)	Sr2^xix—W1—O2b^xv	61.2 (2)
Sr1—Sr2—Sr1^x	128.03 (3)	Sr2^xix—W1—O2c	49.3 (2)
Sr1—Sr2—Sr2^i	89.319 (12)	Sr2^xii—W1—Sr2^xiii	108.35 (6)
Sr1—Sr2—Sr2^ii	90.681 (12)	Sr2^xii—W1—O1a^v	127.60 (14)
Sr1—Sr2—Sr2^iii	89.74 (3)	Sr2^xii—W1—O1b	119.08 (12)
Sr1—Sr2—Sr2^iv	90.42 (3)	Sr2^xii—W1—O1b^xiv	53.35 (11)
Sr1—Sr2—Sr2^v	89.58 (3)	Sr2^xii—W1—O2a	49.33 (15)
Sr1—Sr2—Sr2^vi	90.26 (3)	Sr2^xii—W1—O2b^xv	131.13 (14)
Sr1—Sr2—Sr2^viii	61.62 (3)	Sr2^xii—W1—O2c	60.2 (2)
Sr1—Sr2—Sr2^ix	61.14 (2)	Sr2^xiii—W1—O1a^v	124.03 (14)
Sr1—Sr2—Sr2^x	62.08 (2)	Sr2^xiii—W1—O1b	65.41 (11)
Sr1—Sr2—W1^vii	47.463 (14)	Sr2^xiii—W1—O1b^xiv	132.15 (12)
Sr1—Sr2—W1^xiv	47.30 (2)	Sr2^xiii—W1—O2a	59.84 (15)
Sr1—Sr2—W1^xv	47.74 (2)	Sr2^xiii—W1—O2b^xv	47.6 (2)
Sr1—Sr2—W1^viii	179.61 (5)	Sr2^xiii—W1—O2c	129.16 (13)
Sr1—Sr2—W1^xvi	110.68 (4)	O1a^v—W1—O1b	84.62 (13)
Sr1—Sr2—W1^xvii	110.12 (3)	O1a^v—W1—O1b^xiv	87.05 (14)
Sr1—Sr2—W1^xviii	111.00 (3)	O1a^v—W1—O2a	170.1 (2)
Sr1—Sr2—O1a^x	147.18 (6)	O1a^v—W1—O2b^xv	90.0 (2)
Sr1—Sr2—O1b^viii	148.33 (10)	O1a^v—W1—O2c	85.5 (2)
Sr1—Sr2—O1b^xviii	145.31 (8)	O1b—W1—O1b^xiv	85.25 (17)
Sr1—Sr2—O2a^vii	38.18 (19)	O1b—W1—O2a	89.7 (2)
Sr1—Sr2—O2a^xvii	96.62 (15)	O1b—W1—O2b^xv	90.9 (2)
Sr1—Sr2—O2a^xviii	97.07 (13)	O1b—W1—O2c	165.43 (17)
Sr1—Sr2—O2b	37.99 (11)	O1b^xiv—W1—O2a	84.5 (2)
Sr1—Sr2—O2b^viii	98.44 (10)	O1b^xiv—W1—O2b^xv	175.38 (17)
Sr1—Sr2—O2b^ix	96.80 (8)	O1b^xiv—W1—O2c	83.6 (2)
Sr1—Sr2—O2c^xv	39.09 (10)	O2a—W1—O2b^xv	98.1 (3)
Sr1—Sr2—O2c^xvi	96.93 (9)	O2a—W1—O2c	98.5 (3)
Sr1—Sr2—O2c^xvii	95.38 (9)	O2b^xv—W1—O2c	99.7 (3)
Sr1^viii—Sr2—Sr1^ix	86.903 (19)	Sr1—O1a—Sr1^ii	180.0 (5)
Sr1^viii—Sr2—Sr1^x	86.333 (18)	Sr1—O1a—Sr2^x	89.52 (10)
Sr1^viii—Sr2—Sr2^i	90.44 (2)	Sr1—O1a—Sr2^xiii	89.52 (10)
Sr1^viii—Sr2—Sr2^ii	89.56 (2)	Sr1—O1a—W1^iv	88.50 (14)
Sr1^viii—Sr2—Sr2^iii	133.67 (2)	Sr1—O1a—W1^xv	88.50 (14)
Sr1^viii—Sr2—Sr2^iv	133.06 (2)	Sr1^ii—O1a—Sr2^x	90.48 (10)
Sr1^viii—Sr2—Sr2^v	46.94 (3)	Sr1^ii—O1a—Sr2^xiii	90.48 (10)
Sr1^viii—Sr2—Sr2^vi	46.33 (3)	Sr1^ii—O1a—W1^iv	91.50 (14)
Sr1^viii—Sr2—Sr2^viii	65.83 (4)	Sr1^ii—O1a—W1^xv	91.50 (14)
Sr1^viii—Sr2—Sr2^ix	129.79 (4)	Sr2^x—O1a—Sr2^xiii	179.1 (2)
Sr1^viii—Sr2—Sr2^x	129.29 (4)	Sr2^x—O1a—W1^iv	95.21 (4)
Sr1^viii—Sr2—W1^vii	174.92 (4)	Sr2^x—O1a—W1^xv	84.76 (4)
Sr1^viii—Sr2—W1^xiv	96.93 (4)	Sr2^xiii—O1a—W1^iv	84.76 (4)
Sr1^viii—Sr2—W1^xv	96.46 (4)	Sr2^xiii—O1a—W1^xv	95.21 (4)
Sr1^viii—Sr2—W1^viii	52.236 (18)	W1^iv—O1a—W1^xv	177.0 (3)
Sr1^viii—Sr2—W1^xvi	121.86 (2)	Sr1—O1b—Sr1^vi	170.40 (15)
Sr1^viii—Sr2—W1^xvii	54.33 (4)	Sr1—O1b—Sr2^viii	99.88 (15)
Sr1^viii—Sr2—W1^xviii	54.02 (3)	Sr1—O1b—Sr2^xiii	89.38 (11)
Sr1^viii—Sr2—O1a^x	85.35 (2)	Sr1—O1b—W1	97.28 (15)
Sr1^viii—Sr2—O1b^viii	38.52 (9)	Sr1—O1b—W1^xv	94.21 (16)
Sr1^viii—Sr2—O1b^xviii	47.32 (7)	Sr1^vi—O1b—Sr2^viii	88.82 (11)
Sr1^viii—Sr2—O2a^vii	164.94 (19)	Sr1^vi—O1b—Sr2^xiii	81.63 (11)
Sr1^viii—Sr2—O2a^xvii	85.66 (17)	Sr1^vi—O1b—W1	84.52 (15)
Sr1^viii—Sr2—O2a^xviii	85.38 (15)	Sr1^vi—O1b—W1^xv	81.99 (12)
Sr1^viii—Sr2—O2b	100.47 (15)	Sr2^viii—O1b—Sr2^xiii	169.62 (15)
Sr1^viii—Sr2—O2b^viii	40.15 (10)	Sr2^viii—O1b—W1	103.33 (15)
Sr1^viii—Sr2—O2b^ix	127.97 (9)	Sr2^viii—O1b—W1^xv	87.84 (14)
Sr1^viii—Sr2—O2c^xv	105.31 (16)	Sr2^xiii—O1b—W1	79.91 (13)
Sr1^viii—Sr2—O2c^xvi	127.72 (10)	Sr2^xiii—O1b—W1^xv	86.81 (13)
Sr1^viii—Sr2—O2c^xvii	42.39 (9)	W1—O1b—W1^xv	162.3 (2)
Sr1^ix—Sr2—Sr1^x	86.72 (6)	Sr1—O2a—Sr2^vii	104.6 (3)
Sr1^ix—Sr2—Sr2^i	46.96 (3)	Sr1—O2a—Sr2^xii	98.9 (2)
Sr1^ix—Sr2—Sr2^ii	133.04 (4)	Sr1—O2a—Sr2^xiii	91.54 (18)
Sr1^ix—Sr2—Sr2^iii	46.77 (2)	Sr1—O2a—W1	97.9 (3)
Sr1^ix—Sr2—Sr2^iv	89.86 (5)	Sr2^vii—O2a—Sr2^xii	88.47 (18)
Sr1^ix—Sr2—Sr2^v	90.14 (4)	Sr2^vii—O2a—Sr2^xiii	80.25 (15)
Sr1^ix—Sr2—Sr2^vi	133.23 (3)	Sr2^vii—O2a—W1	155.0 (4)
Sr1^ix—Sr2—Sr2^viii	129.56 (4)	Sr2^xii—O2a—Sr2^xiii	166.3 (3)
Sr1^ix—Sr2—Sr2^ix	66.17 (4)	Sr2^xii—O2a—W1	98.9 (3)
Sr1^ix—Sr2—Sr2^x	129.69 (6)	Sr2^xiii—O2a—W1	88.4 (2)
Sr1^ix—Sr2—W1^vii	96.66 (4)	Sr1—O2b—Sr2	103.5 (2)
Sr1^ix—Sr2—W1^xiv	96.77 (5)	Sr1—O2b—Sr2^viii	100.84 (17)
Sr1^ix—Sr2—W1^xv	175.048 (19)	Sr1—O2b—Sr2^ix	90.3 (2)
Sr1^ix—Sr2—W1^viii	52.64 (2)	Sr1—O2b—W1^xiv	99.18 (17)
Sr1^ix—Sr2—W1^xvi	54.44 (3)	Sr2—O2b—Sr2^viii	87.51 (14)
Sr1^ix—Sr2—W1^xvii	54.42 (3)	Sr2—O2b—Sr2^ix	79.60 (19)
Sr1^ix—Sr2—W1^xviii	121.69 (3)	Sr2—O2b—W1^xiv	153.5 (2)
Sr1^ix—Sr2—O1a^x	42.56 (10)	Sr2^viii—O2b—Sr2^ix	164.70 (17)
Sr1^ix—Sr2—O1b^viii	48.45 (9)	Sr2^viii—O2b—W1^xiv	101.4 (3)
Sr1^ix—Sr2—O1b^xviii	87.20 (9)	Sr2^ix—O2b—W1^xiv	87.0 (2)
Sr1^ix—Sr2—O2a^vii	100.70 (16)	Sr1^v—O2c—Sr2^xiv	104.10 (18)
Sr1^ix—Sr2—O2a^xvii	41.24 (18)	Sr1^v—O2c—Sr2^xix	98.6 (2)
Sr1^ix—Sr2—O2a^xviii	127.77 (16)	Sr1^v—O2c—Sr2^xii	90.81 (16)
Sr1^ix—Sr2—O2b	106.85 (12)	Sr1^v—O2c—W1	96.71 (17)
Sr1^ix—Sr2—O2b^viii	126.61 (10)	Sr2^xiv—O2c—Sr2^xix	87.8 (2)
Sr1^ix—Sr2—O2b^ix	41.39 (9)	Sr2^xiv—O2c—Sr2^xii	82.14 (15)
Sr1^ix—Sr2—O2c^xv	165.89 (13)	Sr2^xiv—O2c—W1	156.8 (3)
Sr1^ix—Sr2—O2c^xvi	85.58 (12)	Sr2^xix—O2c—Sr2^xii	167.67 (17)
Sr1^ix—Sr2—O2c^xvii	86.33 (11)	Sr2^xix—O2c—W1	99.2 (2)
Sr1^x—Sr2—Sr2^i	133.68 (4)	Sr2^xii—O2c—W1	87.6 (3)
Sr1^x—Sr2—Sr2^ii	46.32 (3)

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