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The title compound, (H3O)2NaAl3F12 [di­hydro­nium sodium trialuminum(III) dodeca­fluoride], was obtained by solvo­thermal synthesis from the reaction of aluminium hydroxide, sodium hydroxide, 1,2,4-triazole and aqueous HF in ethanol at 463 K for 48 h. The structure consists of AlF6 octa­hedra organized in [AlF4]n HTB-type sheets (HTB is hexa­gonal tungsten bronze) separated by H3O+ and Na+ cations.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S205322961400919X/eg3155sup1.cif
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S205322961400919X/eg3155Isup2.hkl
Contains datablock I

CCDC reference: 999092

Computing details top

Data collection: APEX2 (Bruker, 2013); cell refinement: SAINT-Plus (Bruker, 2013); data reduction: SAINT-Plus (Bruker, 2013); program(s) used to solve structure: SHELXS86 (Sheldrick, 2008) in WinGX (Farrugia, 2012); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) in WinGX (Farrugia, 2012); molecular graphics: DIAMOND (Brandenburg, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012).

Dihydronium sodium tris(tetrafluoroaluminate) top
Crystal data top
(H3O)2NaAl3F12Z = 2
Mr = 369.98F(000) = 360
Monoclinic, P21/mDx = 2.532 Mg m3
Hall symbol: -P 2ybMo Kα radiation, λ = 0.71073 Å
a = 7.0869 (2) ŵ = 0.61 mm1
b = 6.9749 (2) ÅT = 120 K
c = 9.8196 (3) ÅPlatelet, colourless
β = 91.393 (1)°0.51 × 0.34 × 0.15 mm
V = 485.24 (2) Å3
Data collection top
Bruker Kappa APEXII CCD
diffractometer
1596 independent reflections
Radiation source: fine-focus sealed tube1570 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.026
Detector resolution: 10.0 pixels mm-1θmax = 30.6°, θmin = 2.1°
ω and φ scansh = 1010
Absorption correction: multi-scan
(SHELX76; Sheldrick, 2008)
k = 99
Tmin = 0.743, Tmax = 0.915l = 1413
15274 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.028Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.084All H-atom parameters refined
S = 1.11 w = 1/[σ2(Fo2) + (0.0465P)2 + 0.5543P]
where P = (Fo2 + 2Fc2)/3
1596 reflections(Δ/σ)max < 0.001
114 parametersΔρmax = 0.39 e Å3
10 restraintsΔρmin = 1.04 e Å3
Special details top

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 (Å2) top
xyzUiso*/UeqOcc. (<1)
Al10.50000.00000.50000.00368 (13)
Al20.00000.50000.00000.00356 (13)
Al30.20623 (7)0.25000.27395 (5)0.00394 (13)
F10.57569 (16)0.25000.50820 (12)0.0087 (2)
F20.00979 (16)0.25000.36125 (12)0.0111 (2)
F30.01648 (16)0.75000.05539 (11)0.0071 (2)
F40.41009 (17)0.25000.17982 (12)0.0111 (2)
F50.36266 (12)0.03081 (13)0.64495 (8)0.00953 (17)
F60.29629 (11)0.06482 (11)0.39041 (8)0.00725 (16)
F70.22512 (11)0.45634 (12)0.06434 (9)0.01010 (17)
F80.10568 (12)0.44061 (12)0.16570 (8)0.00960 (17)
O10.0295 (3)0.25000.63603 (18)0.0216 (4)
H10.005 (4)0.25000.5354 (17)0.025 (4)*
H20.136 (5)0.162 (5)0.666 (3)0.025 (4)*0.50
H30.037 (5)0.340 (5)0.698 (3)0.025 (4)*0.50
O20.4927 (3)0.25000.8865 (2)0.0239 (4)
H40.393 (4)0.152 (6)0.919 (4)0.025 (4)*0.50
H50.614 (3)0.25000.944 (3)0.025 (4)*
H60.497 (6)0.318 (6)0.794 (3)0.025 (4)*0.50
Na10.71352 (11)0.25000.24193 (8)0.00535 (15)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Al10.0049 (2)0.0025 (3)0.0036 (2)0.00017 (16)0.00103 (17)0.00019 (16)
Al20.0047 (2)0.0025 (3)0.0034 (2)0.00001 (16)0.00093 (17)0.00027 (16)
Al30.0045 (2)0.0036 (2)0.0037 (2)00.00152 (18)0
F10.0095 (5)0.0029 (5)0.0136 (5)00.0040 (4)0
F20.0060 (5)0.0183 (6)0.0089 (5)00.0004 (4)0
F30.0120 (5)0.0032 (5)0.0059 (5)00.0007 (4)0
F40.0087 (5)0.0167 (6)0.0079 (5)00.0011 (4)0
F50.0112 (4)0.0108 (4)0.0067 (3)0.0028 (3)0.0023 (3)0.0010 (3)
F60.0083 (3)0.0055 (3)0.0077 (3)0.0001 (3)0.0040 (3)0.0018 (3)
F70.0080 (4)0.0075 (4)0.0150 (4)0.0002 (3)0.0034 (3)0.0011 (3)
F80.0159 (4)0.0060 (4)0.0066 (3)0.0021 (3)0.0058 (3)0.0007 (3)
O10.0211 (8)0.0261 (9)0.0177 (8)00.0016 (6)0
O20.0254 (9)0.0251 (9)0.0210 (8)00.0037 (7)0
Na10.0048 (3)0.0056 (3)0.0057 (3)00.0000 (2)0
Geometric parameters (Å, º) top
Al1—F51.7569 (8)F1—Al1v1.8256 (3)
Al1—F5i1.7569 (8)F1—Na12.8133 (15)
Al1—F1i1.8256 (3)F2—Na1iv2.2597 (14)
Al1—F11.8256 (3)F3—Al2vi1.8312 (3)
Al1—F6i1.8361 (7)F4—Na12.2209 (14)
Al1—F61.8361 (7)F5—Na1i2.3218 (10)
Al1—Na13.4553 (6)F7—Na1iv2.3105 (10)
Al1—Na1i3.4553 (6)O1—H11.012 (15)
Al2—F71.7568 (8)O1—H21.011 (16)
Al2—F7ii1.7568 (8)O1—H31.001 (15)
Al2—F8ii1.8222 (8)O2—H41.040 (18)
Al2—F81.8222 (8)O2—H51.019 (17)
Al2—F3ii1.8312 (3)O2—H61.027 (19)
Al2—F31.8312 (3)Na1—F2vii2.2597 (14)
Al3—F41.7340 (13)Na1—F7viii2.3105 (10)
Al3—F21.7726 (13)Na1—F7vii2.3105 (10)
Al3—F6iii1.8297 (8)Na1—F5v2.3218 (10)
Al3—F61.8297 (8)Na1—F5i2.3218 (10)
Al3—F8iii1.8354 (9)Na1—Al1v3.4553 (6)
Al3—F81.8354 (9)Na1—Al3vii3.4983 (9)
Al3—Na1iv3.4983 (9)
F5—Al1—F5i180.0F8—Al3—Na1iv64.87 (3)
F5—Al1—F1i89.12 (5)Al1—F1—Al1v145.56 (7)
F5i—Al1—F1i90.88 (5)Al1—F1—Na193.86 (4)
F5—Al1—F190.88 (5)Al1v—F1—Na193.86 (4)
F5i—Al1—F189.12 (5)Al3—F2—Na1iv119.87 (6)
F1i—Al1—F1180.0Al2—F3—Al2vi144.44 (7)
F5—Al1—F6i89.91 (4)Al3—F4—Na1131.86 (7)
F5i—Al1—F6i90.09 (4)Al1—F5—Na1i115.10 (5)
F1i—Al1—F6i90.95 (4)Al3—F6—Al1142.89 (5)
F1—Al1—F6i89.05 (4)Al2—F7—Na1iv124.65 (5)
F5—Al1—F690.09 (4)Al2—F8—Al3145.81 (5)
F5i—Al1—F689.91 (4)H1—O1—H2116.5 (19)
F1i—Al1—F689.05 (4)H1—O1—H3119.3 (19)
F1—Al1—F690.95 (4)H2—O1—H3124 (2)
F6i—Al1—F6180.0H4—O2—H5113 (2)
F5—Al1—Na1142.52 (3)H4—O2—H6128 (3)
F5i—Al1—Na137.48 (3)H5—O2—H6117 (3)
F1i—Al1—Na1125.67 (4)F4—Na1—F2vii164.71 (6)
F1—Al1—Na154.33 (4)F4—Na1—F7viii89.51 (4)
F6i—Al1—Na1101.66 (3)F2vii—Na1—F7viii102.39 (4)
F6—Al1—Na178.34 (3)F4—Na1—F7vii89.51 (4)
F5—Al1—Na1i37.48 (3)F2vii—Na1—F7vii102.39 (4)
F5i—Al1—Na1i142.52 (3)F7viii—Na1—F7vii77.06 (5)
F1i—Al1—Na1i54.33 (4)F4—Na1—F5v84.06 (3)
F1—Al1—Na1i125.67 (4)F2vii—Na1—F5v87.76 (3)
F6i—Al1—Na1i78.34 (3)F7viii—Na1—F5v159.52 (4)
F6—Al1—Na1i101.66 (3)F7vii—Na1—F5v83.45 (3)
Na1—Al1—Na1i180.0F4—Na1—F5i84.06 (3)
F7—Al2—F7ii180.00 (6)F2vii—Na1—F5i87.76 (3)
F7—Al2—F8ii90.19 (4)F7viii—Na1—F5i83.45 (3)
F7ii—Al2—F8ii89.81 (4)F7vii—Na1—F5i159.52 (4)
F7—Al2—F889.81 (4)F5v—Na1—F5i115.04 (5)
F7ii—Al2—F890.19 (4)F4—Na1—F184.23 (4)
F8ii—Al2—F8180.00 (5)F2vii—Na1—F180.48 (4)
F7—Al2—F3ii90.39 (5)F7viii—Na1—F1141.03 (2)
F7ii—Al2—F3ii89.61 (5)F7vii—Na1—F1141.03 (2)
F8ii—Al2—F3ii88.80 (4)F5v—Na1—F157.68 (3)
F8—Al2—F3ii91.20 (4)F5i—Na1—F157.68 (3)
F7—Al2—F389.61 (5)F4—Na1—Al1v76.29 (3)
F7ii—Al2—F390.39 (5)F2vii—Na1—Al1v90.55 (3)
F8ii—Al2—F391.20 (4)F7viii—Na1—Al1v164.10 (3)
F8—Al2—F388.80 (4)F7vii—Na1—Al1v109.45 (2)
F3ii—Al2—F3180.00 (7)F5v—Na1—Al1v27.42 (2)
F4—Al3—F2176.71 (6)F5i—Na1—Al1v87.92 (3)
F4—Al3—F6iii92.90 (4)F1—Na1—Al1v31.813 (10)
F2—Al3—F6iii89.43 (4)F4—Na1—Al176.29 (3)
F4—Al3—F692.90 (4)F2vii—Na1—Al190.55 (3)
F2—Al3—F689.43 (4)F7viii—Na1—Al1109.45 (2)
F6iii—Al3—F689.81 (5)F7vii—Na1—Al1164.10 (3)
F4—Al3—F8iii90.46 (4)F5v—Na1—Al187.92 (3)
F2—Al3—F8iii87.27 (4)F5i—Na1—Al127.42 (2)
F6iii—Al3—F8iii176.34 (5)F1—Na1—Al131.813 (10)
F6—Al3—F8iii88.58 (4)Al1v—Na1—Al160.617 (13)
F4—Al3—F890.46 (4)F4—Na1—Al3vii169.22 (4)
F2—Al3—F887.27 (4)F2vii—Na1—Al3vii26.07 (3)
F6iii—Al3—F888.58 (4)F7viii—Na1—Al3vii82.07 (3)
F6—Al3—F8176.34 (5)F7vii—Na1—Al3vii82.07 (3)
F8iii—Al3—F892.83 (5)F5v—Na1—Al3vii101.55 (3)
F4—Al3—Na1iv142.64 (5)F5i—Na1—Al3vii101.55 (3)
F2—Al3—Na1iv34.07 (4)F1—Na1—Al3vii106.55 (3)
F6iii—Al3—Na1iv112.86 (3)Al1v—Na1—Al3vii112.83 (2)
F6—Al3—Na1iv112.86 (3)Al1—Na1—Al3vii112.83 (2)
F8iii—Al3—Na1iv64.87 (3)
Symmetry codes: (i) x+1, y, z+1; (ii) x, y+1, z; (iii) x, y+1/2, z; (iv) x1, y, z; (v) x+1, y+1/2, z+1; (vi) x, y+1/2, z; (vii) x+1, y, z; (viii) x+1, y+1/2, z.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···F21.01 (2)1.71 (2)2.706 (2)167 (3)
O1—H2···F51.01 (3)1.86 (4)2.812 (2)155 (3)
O1—H3···F8ix1.00 (3)2.10 (3)3.0750 (16)165 (3)
O2—H4···F7x1.04 (4)1.82 (4)2.8406 (17)166 (3)
O2—H5···F7xi1.02 (2)2.17 (2)2.992 (2)137 (1)
O2—H5···F7xii1.02 (2)2.17 (2)2.992 (2)137 (1)
O2—H6···F5iii1.03 (3)2.02 (4)2.9507 (19)149 (3)
Symmetry codes: (iii) x, y+1/2, z; (ix) x, y+1, z+1; (x) x, y1/2, z+1; (xi) x+1, y, z+1; (xii) x+1, y+1/2, z+1.
Unit-cell comparisons of the A2NaAl3F12 series (A = Cs+, Rb+, K+, H3O+) in the P21/m space group, interlayer distances (d) and relative shift of successive HTB layers. top
Cs+Rb+K+H3O+ (120 K)H3O+ (room temperature)
aM (Å)14.052 (8)12.046 (6)11.882 (7)12.0398 (4)12.0758 (8)
bM (Å)7.026 (4)6.984 (4)6.983 (4)6.9749 (2)6.9864 (5)
cM (Å)7.214 (2)7.093 (4)6.942 (4)7.0869 (2)7.1117 (5)
βM (°)120.88 (1)125.04 (4)125.59 (3)126.05126.08
d (Å)6.08105.80745.64535.81235.8356
Shift (Å)4.05684.07244.04014.05484.0647
Atomic parameters of (H3O)2NaAl3F12. top
AtomOx.Wyck.SiteS.O.F.x/ay/bz/cUiso eq. [Å2]
Al132d-1½0½0.00369 (14)
Al232a-10½00.00355 (14)
Al332em0.20623 (7)¼0.27395 (5)0.00396 (12)
F1-12em0.57569 (16)¼0.50820 (12)0.0087 (3)
F2-12em-0.00979 (16)¼0.36125 (12)0.0111 (3)
F3-12em-0.01648 (16)¾0.05539 (11)0.0070 (3)
F4-12em0.41009 (17)¼0.17982 (12)0.0111 (3)
F5-14f10.36266 (12)0.03081 (13)0.64495 (8)0.0095 (2)
F6-14f10.29629 (11)0.06482 (11)0.39041 (8)0.00723 (17)
F7-14f1-0.22512 (11)0.45634 (12)0.06434 (9)0.0101 (2)
F8-14f10.10568 (12)0.44061 (12)0.16570 (8)0.0096 (2)
O1-22em0.0295 (3)¼0.63603 (18)0.0216 (5)
H112em-0.005 (4)¼0.5354 (17)0.025 (4)
H214f10.50.136 (5)0.162 (5)0.666 (3)0.025 (4)
H314f10.5-0.037 (5)0.340 (5)0.698 (3)0.025 (4)
O2-22em0.4927 (3)¼0.8865 (2)0.0239 (5)
H4-24f10.50.393 (4)0.152 (6)0.919 (4)0.025 (4)
H5-22em0.614 (3)¼0.944 (3)0.025 (4)
H6-24f10.50.497 (6)0.318 (6)0.794 (3)0.025 (4)
Na112em0.71352 (11)¼0.24193 (8)0.00537 (17)
Tilt angle (°) comparison in the A2NaAl3F12 series (A = Cs+, Rb+, K+, H3O+). top
Tilt angle for Al1–Al2–Al3 octahedra
HTB–AlF313.7
Cs+4.3
Rb+19.7 - 14.3 - 3.5
K+23.4 - 21.4 - 1.8
H3O+ (120 K)20.6 - 16.6 - 6.6
Selected distances (Å) of (H3O)2NaAl3F12 top
Al1—F52x 1.7569 (8)F1—Na12.8133 (14)
Al1—F12x 1.8256 (3)F2—Na12.2597 (14)
Al1—F62x 1.8361 (7)F3—Na13.6658 (14)
Al2—F72x 1.7568 (8)F4—Na12.2209 (14)
Al2—F82x 1.8222 (8)F5—Na12.3218 (10)
Al2—F32x 1.8312 (3)F6—Na13.5703 (11)
Al3—F62x 1.8297 (8)F7—Na12.3105 (11)
Al3—F82x 1.8354 (9)F8—Na13.1864 (11)
Al3—F41.7340 (13)
Al3—F21.7726 (13)
Chosen angles (°) of (H3O)2NaAl3F12 top
F1—Al1—F690.95 (4)F4—Al3—F2176.71 (6)
F5—Al1—F190.88 (5)F4—Al3—F692.90 (4)
F5—Al1—F690.09 (4)F2—Al3—F689.43 (4)
F7—Al2—F889.81 (4)F4—Al3—F890.46 (4)
F7—Al2—F389.61 (5)F2—Al3—F887.27 (4)
F8—Al2—F388.80 (4)F6—Al3—F8176.34 (5)
Calculated bond valence values in (H3O)2NaAl3F12. top
Al12.97F10.94Na11.15
Al22.99F20.75
Al32.98F30.93
F40.83
F50.74
F60.92
F70.75
F80.93
Description of structurally related fluorides in terms of HTB layers, connecting entities and the nature of the groups inserted in the cavities. top
HTB layersConnecting entitiesCavities
AMIIMIIIF6 pyrochlore[(MII0.5MIII0.5)3F12]MII0.5MIII0.5A
(H2O)M2F6 pyrochlore[MIII3F12]MIIIH2O
A2MIVCu3F12[Cu3F12]MIVA
A2MIIMIIIF7 weberites[(MIIIF2F4/2)(MIIF2F4/2)](MIIIF2)A
MIIMIIIF5(H2O)2 weberites[(MIIIF2F4/2)2(MIIF4/2(H2O)2)]MII(H2O)2
(H2O)0.33MF3[MIIIF2F4/2]FaxialH2O
FeIII2MIIF8(H2O)2[(FeIIIF2F4/2)(MIIF4/2(H2O)2)]Faxial
Hydrogen bonding in (H3O)2NaAl3F12. top
DHAD—HH···AD···AD-H···A angle
O1H1F21.012 (17)1.710 (17)2.706 (2)167 (3)
O1H2F51.01 (3)1.86 (4)2.812 (2)155 (3)
O1H3F81.00 (3)2.10 (3)3.0750 (16)165 (3)
O2H4F71.04 (4)1.82 (4)2.8406 (17)166 (3)
O2H5F71.02 (2)2.168 (19)2.992 (2)136.8 (6)
O2H5F71.02 (2)2.168 (19)2.992 (2)136.8 (6)
O2H6F51.03 (3)2.02 (4)2.9507 (19)149 (3)
 

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