inorganic papers
i6
Huang and Ibers Na3(VOS3) DOI: 10.1107/S1600536803028939 Acta Cryst.(2004). E60, i6±i7Acta Crystallographica Section E
Structure Reports Online
ISSN 1600-5368
Na
3VOS
3Fu Qiang Huang and James A. Ibers*
Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA
Correspondence e-mail: [email protected]
Key indicators
Single-crystal X-ray study
T= 153 K
Mean(V±O) = 0.003 AÊ
Rfactor = 0.017
wRfactor = 0.044
Data-to-parameter ratio = 19.8
For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
#2004 International Union of Crystallography Printed in Great Britain ± all rights reserved
The title compound, trisodium vanadium oxide trisul®de, has been synthesized by the reaction of the elements in an Li2O/
Na2S ¯ux at 723 K. The structure comprises isolated
tetrahedral VOS33ÿ anions separated by Na+ cations. The
anion has symmetry m. Bond distances include VÐO = 1.673 (2) AÊ, and VÐS = 2.1746 (4) and 2.1971 (6) AÊ. Each Na+
cation is coordinated in a distorted octahedron by one O and ®ve S atoms.
Comment
Many compounds of the typeA3MQ4(A= alkali metal,M=
group 5 or 15 element, andQ= S, Se) have been synthesized. The compounds K3VS4 (van den Berg & de Vries, 1964),
K3NbS4(Latroche & Ibers, 1990), K3NbSe4(Latroche & Ibers,
1990), K3TaS4(Latroche & Ibers, 1990), K3TaSe4(Latroche &
Ibers, 1990), Rb3NbS4(Krauseet al., 1998), Cs3NbSe4(Yunet
al., 1988), Cs3TaSe4(Yunet al., 1988), Rb3AsSe4(Wachhold &
Sheldrick, 1996), Rb3SbS4 (Bensch & DuÈrichen, 1996),
Rb3SbSe4(Wachhold & Sheldrick, 1996), Rb3VS4
(Emirdag-Eanes & Ibers, 2001), and Cs3VS4 (Emirdag-Eanes & Ibers,
2001) have the K3VS4structure type. The compounds K3SbS4
(Bensch & DuÈrichen, 1997), K3AsS4 (Palazzi et al., 1974),
K3SbSe4(Eisenmann & Zagler, 1989), (NH4)3SbS4(Wachhold
& Sheldrick, 1996), Na3VS4 (Klepp & Gabl, 1997), and
Na3NbS4(Niewaet al., 1998) have different structure types.
All these compounds are composed of isolated MQ43ÿ
tetrahedral anions separated by theA+cations. There are no
QÐQ or MÐM bonds in these structures. Therefore, the oxidation states of A, M andQare 1+, 5+, and 2ÿ, respec-tively. These compounds crystallize in the orthorhombic,
Received 3 December 2003 Accepted 16 December 2003 Online 24 December 2003
Figure 1
A perspective view of Na3VOS3along [001]. The VOS3anion is plotted in
tetragonal, or cubic systems. Their structures depend on the packing of the anions and cations, and hence on the sizes of the ions. For example, the space group of Na3VS4 is P421c
(Klepp & Gabl, 1997), that of K3VS4 is Pnma (in standard
setting) (van den Berg & de Vries, 1964), and that of Na3NbS4
isFdd2 (Niewaet al., 1998). Thus, both theAandMcations affect the ®nal structure.
The compound Na3VOS3 described here crystallizes in
space group Cmc21 of the orthorhombic system with four
formula units in the cell (Fig. 1). The structure contains discrete Na+cations and tetrahedral VOS
33ÿanions, instead of
VS43ÿanions as in Na3VS4. Bond distances include VÐO =
1.673 (2) AÊ, and VÐS = 2.1746 (4) and 2.1971 (6) AÊ. The VOS33ÿ anion is also found in Ba6V4O5S11 (Litteer et al.,
1997), where the corresponding bond distances are 1.682 (9), and 2.140 (4) and 2.169 (3) AÊ. The structure of Na3VOS3 is
closely related to that of K3SbS4(Bensch & DuÈrichen, 1997),
which also crystallizes in space group Cmc21. However, in
Na3VOS3 the two crystallographically independent Na+
cations are each coordinated by one O and ®ve S atoms in a distorted octahedron, whereas in K3SbS4the two unique K+
cations are coordinated by six and by seven S atoms.
Experimental
The compound Na3VOS3was synthesized by the solid-state reaction
of the elements in an Li2O/Na2S ¯ux at 723 K. The mixture of
1.0 mmol V (Johnson Matthey Electronics, 99.5%), 5.0 mmol S (Alfa Aesar, 99.5%), 1.2 mmol Li2O (Aldrich, 99+%), and 2.0 mmol Na2S
(Aldrich, 99%) was loaded into a fused-silica tube under an argon atmosphere in a glove-box. The tube was sealed under 10ÿ4Torr and
then placed in a computer-controlled furnace. The sample was heated to 723 K at 5 K minÿ1, kept at 723 K for 3 d, annealed at 0.05 K minÿ1
to 373 K, then cooled to room temperature. The reaction mixture was washed with dimethylformamide. In the reaction, the major compo-nent consisted of red ¯at needles of Na3VOS3. Analysis of these
needles with an EDX-equipped Hitachi S-3500 SEM showed only the presence of Na, V, and S in the approximate ratio of 3:1:3. The compound is very sensitive to moisture and decomposes in water or acetone.
Crystal data
Na3(VOS3) Mr= 232.09 Orthorhombic,Cmc21 a= 9.6673 (11) AÊ
b= 11.9122 (14) AÊ
c= 5.8846 (7) AÊ
V= 677.66 (14) AÊ3 Z= 4
Dx= 2.275 Mg mÿ3
MoKradiation Cell parameters from 3805
re¯ections
= 2.7±28.8
= 2.47 mmÿ1 T= 153 (2) K Flat needle, red 0.580.160.04 mm
Data collection
Bruker SMART 1000 CCD diffractometer
0.3!scans
Absorption correction: by integration (XPREPin
SHELXTL; Sheldrick, 2000)
Tmin= 0.337,Tmax= 0.902
3902 measured re¯ections
872 independent re¯ections 867 re¯ections withI> 2(I)
Rint= 0.023 max= 28.8 h=ÿ12!12
k=ÿ15!15
l=ÿ7!7
Re®nement
Re®nement onF2 R[F2> 2(F2)] = 0.017 wR(F2) = 0.044 S= 1.15 872 re¯ections 44 parameters
w= 1/[2(Fo2) + (0.03P)2]
whereP= (Fo2+ 2Fc2)/3
(/)max= 0.006 max= 0.65 e AÊÿ3 min=ÿ0.37 e AÊÿ3
Extinction correction:SHELXTL
Extinction coef®cient: 0.0009 (5) Absolute structure: Flack (1983) Flack parameter = 0.21 (2)
Table 1
Selected geometric parameters (AÊ,).
Na1ÐO 2.3228 (19) Na1ÐS1i 2.8198 (10)
Na1ÐS1ii 2.8403 (12)
Na1ÐS2 3.0063 (5) Na1ÐS2iii 3.0063 (5)
Na1ÐS1 3.0443 (12) Na2ÐO 2.3128 (10) Na2ÐS1iv 2.8361 (7)
Na2ÐS2iv 2.8504 (9)
Na2ÐS2v 2.9111 (7)
Na2ÐS2vi 3.0439 (9)
Na2ÐS2 3.2125 (7) VÐO 1.6726 (18) VÐS2vi 2.1746 (4)
VÐS1 2.1971 (6) OÐVÐS2vi 107.23 (3)
S2viÐVÐS2vii 115.15 (2) OÐVÐS1S2viÐVÐS1 106.91 (5)109.968 (17)
Symmetry codes: (i) 2ÿx;2ÿy;1
2z; (ii) x;y;1z; (iii) 2ÿx;y;z; (iv) 3
2ÿx;32ÿy;12z; (v)32ÿx;yÿ12;z; (vi)32ÿx;32ÿy;zÿ12; (vii)21x;32ÿy;zÿ12.
387 Friedel pairs were used for the re®nement, which gave 0.79 (2)/ 0.21 (2) for the enantiomeric twin ratio.
Data collection:SMART(Bruker, 2000); cell re®nement:SMART; data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2000); program(s) used to re®ne structure: SHELXTL; molecular graphics:ATOMS (Dowty, 2000); software used to prepare material for publication:SHELXTL.
This research was supported by NSF grant DMR00-96676. Use was made of the Central Facilities supported by the MRSEC program of the National Science Foundation (DMR00-76097) at the Materials Research Center of North-western University.
References
Bensch, W. & DuÈrichen, P. (1996).Z. Kristallogr.211, 636. Bensch, W. & DuÈrichen, P. (1997).Z. Kristallogr.212, 95±96.
Berg, J. M. van den & de Vries, R. (1964).Proc. K. Ned. Akad. Wet. Ser. B,67, 178±180.
Bruker (2000). SMART(Version 5.054) and SAINT-Plus(Version 6.22A). Bruker Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Dowty, E. (2000).ATOMS for Windows. Version 5.1. Shape Software, 521
Hidden Valley Road, Kingsport, TN 37663, USA.
Eisenmann, B. & Zagler, R. (1989).Z. Naturforsch. TeilB,44, 249±256. Emirdag-Eanes, M. & Ibers, J. A. (2001).Z. Kristallogr. New Cryst. Struct.216,
489±490.
Flack, H. D. (1983).Acta Cryst.A39, 876±881.
Klepp, K. O. & Gabl, G. (1997).Eur. J. Solid State Inorg. Chem.34, 1143±1154. Krause, O., NaÈther, C., Jess, I. & Bensch, W. (1998).Acta Cryst.C54, 902±904. Latroche, M. & Ibers, J. A. (1990).Inorg. Chem.29, 1503±1505.
Litteer, J. B., Fettinger, J. C. & Eichhorn, B. W. (1997).Acta Cryst.C53, 163± 165.
Niewa, R., Vajenine, G. V. & DiSalvo, F. J. (1998).J. Solid State Chem.139, 404±411.
Palazzi, M., Jaulmes, S. & Laruelle, P. (1974).Acta Cryst.B30, 2378±2381. Sheldrick, G. M. (2000). SHELXTL. DOS/Windows/NT Version 6.12.
University of GoÈttingen, Germany.
supporting information
sup-1
Acta Cryst. (2004). E60, i6–i7
supporting information
Acta Cryst. (2004). E60, i6–i7 [https://doi.org/10.1107/S1600536803028939]
Na
3VOS
3Fu Qiang Huang and James A. Ibers
Trisodium vanadium oxide trisulfide
Crystal data
Na3(VOS3)
Mr = 232.09
Orthorhombic, Cmc21
Hall symbol: C 2c -2
a = 9.6673 (11) Å
b = 11.9122 (14) Å
c = 5.8846 (7) Å
V = 677.66 (14) Å3
Z = 4
F(000) = 448
Dx = 2.275 Mg m−3
Mo Kα radiation, λ = 0.71073 Å Cell parameters from 3805 reflections
θ = 2.7–28.8°
µ = 2.47 mm−1
T = 153 K Flat needle, red 0.58 × 0.16 × 0.04 mm
Data collection
Bruker SMART-1000 CCD diffractometer
Radiation source: fine-focus sealed tube Graphite monochromator
0.3° ω scans
Absorption correction: integration (XPREP; Sheldrick, 2000)
Tmin = 0.337, Tmax = 0.902
3902 measured reflections 872 independent reflections 867 reflections with I > 2σ(I)
Rint = 0.023
θmax = 28.8°, θmin = 2.7°
h = −12→12
k = −15→15
l = −7→7
Refinement
Refinement on F2
Least-squares matrix: full
R[F2 > 2σ(F2)] = 0.017
wR(F2) = 0.044
S = 1.15 872 reflections 44 parameters 0 restraints
Primary atom site location: structure-invariant direct methods
Secondary atom site location: difference Fourier map
w = 1/[σ2(F
o2) + (0.03P)2]
where P = (Fo2 + 2Fc2)/3
(Δ/σ)max = 0.006
Δρmax = 0.65 e Å−3
Δρmin = −0.37 e Å−3
Extinction correction: SHELXTL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Extinction coefficient: 0.0009 (5) Absolute structure: Flack (1983) Absolute structure parameter: 0.21 (2)
Special details
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
x y z Uiso*/Ueq
Na1 1.0000 0.88164 (8) 1.0000 0.0152 (2) Na2 0.79336 (7) 0.61995 (5) 0.98035 (19) 0.01556 (15) V 1.0000 0.70360 (2) 0.5789 (2) 0.00851 (10) S1 1.0000 0.88180 (4) 0.48267 (19) 0.01130 (12) S2 0.68988 (4) 0.87609 (3) 0.9639 (2) 0.01272 (11) O 1.0000 0.69877 (12) 0.8630 (4) 0.0112 (3)
Atomic displacement parameters (Å2)
U11 U22 U33 U12 U13 U23
Na1 0.0194 (5) 0.0116 (4) 0.0146 (5) 0.000 0.000 −0.0023 (3) Na2 0.0133 (3) 0.0185 (3) 0.0149 (3) −0.0016 (2) 0.0021 (3) 0.0004 (3) V 0.00835 (15) 0.00893 (17) 0.00826 (17) 0.000 0.000 0.00038 (13) S1 0.0106 (2) 0.0093 (2) 0.0140 (2) 0.000 0.000 0.00230 (18) S2 0.01136 (19) 0.01397 (19) 0.0128 (2) −0.00304 (11) 0.00159 (14) 0.00061 (12) O 0.0110 (7) 0.0142 (9) 0.0085 (8) 0.000 0.000 0.0011 (5)
Geometric parameters (Å, º)
Na1—O 2.3228 (19) Na2—Na2iii 3.9952 (14)
Na1—S1i 2.8198 (10) Na2—Na1viii 4.0042 (10)
Na1—S1ii 2.8403 (12) Na2—Na1ix 4.0144 (10)
Na1—S2iii 3.0063 (5) V—O 1.6726 (18)
Na1—S2 3.0063 (5) V—S2viii 2.1746 (4)
Na1—S1 3.0443 (12) V—S2x 2.1746 (4)
Na1—V 3.2616 (11) V—S1 2.1971 (6)
Na1—Na2 3.7042 (11) V—Na2iii 3.2501 (8)
Na1—Na2iii 3.7042 (11) V—Na2x 3.5774 (7)
Na1—Na2iv 4.0042 (10) V—Na2viii 3.5774 (7)
Na1—Na2v 4.0042 (10) S1—Na1xi 2.8198 (10)
Na1—Na2vi 4.0144 (10) S1—Na2x 2.8361 (7)
Na2—O 2.3128 (10) S1—Na2viii 2.8361 (8)
Na2—S1v 2.8361 (7) S1—Na1xii 2.8403 (12)
Na2—S2v 2.8504 (9) S2—Vv 2.1746 (4)
Na2—S2vii 2.9111 (7) S2—Na2viii 2.8504 (9)
Na2—S2viii 3.0439 (9) S2—Na2xiii 2.9111 (7)
Na2—S2 3.2125 (7) S2—Na2v 3.0439 (9)
Na2—V 3.2501 (8) O—Na2iii 2.3128 (10)
Na2—Vv 3.5774 (7)
O—Na1—S1i 157.62 (7) O—Na2—Na2iii 30.26 (4)
O—Na1—S1ii 110.35 (6) S1v—Na2—Na2iii 179.496 (17)
S1i—Na1—S1ii 92.03 (3) S2v—Na2—Na2iii 86.742 (16)
O—Na1—S2iii 87.411 (19) S2vii—Na2—Na2iii 86.810 (16)
supporting information
sup-3
Acta Cryst. (2004). E60, i6–i7
S1ii—Na1—S2iii 94.06 (2) S2—Na2—Na2iii 108.145 (13)
O—Na1—S2 87.411 (19) V—Na2—Na2iii 52.075 (15)
S1i—Na1—S2 91.113 (19) Vv—Na2—Na2iii 142.445 (11)
S1ii—Na1—S2 94.06 (2) Na1—Na2—Na2iii 57.365 (14)
S2iii—Na1—S2 171.51 (4) O—Na2—Na1viii 113.76 (4)
O—Na1—S1 69.72 (5) S1v—Na2—Na1viii 45.18 (2)
S1i—Na1—S1 87.89 (3) S2v—Na2—Na1viii 138.16 (3)
S1ii—Na1—S1 179.93 (4) S2vii—Na2—Na1viii 90.64 (2)
S2iii—Na1—S1 85.95 (2) S2viii—Na2—Na1viii 48.158 (16)
S2—Na1—S1 85.95 (2) S2—Na2—Na1viii 76.27 (2)
O—Na1—V 29.13 (5) V—Na2—Na1viii 85.62 (2)
S1i—Na1—V 128.49 (4) Vv—Na2—Na1viii 63.63 (2)
S1ii—Na1—V 139.48 (4) Na1—Na2—Na1viii 114.08 (2)
S2iii—Na1—V 86.10 (2) Na2iii—Na2—Na1viii 135.094 (14)
S2—Na1—V 86.10 (2) O—Na2—Na1ix 154.94 (4)
S1—Na1—V 40.597 (18) S1v—Na2—Na1ix 44.620 (14)
O—Na1—Na2 36.86 (2) S2v—Na2—Na1ix 91.32 (2)
S1i—Na1—Na2 147.126 (14) S2vii—Na2—Na1ix 48.287 (17)
S1ii—Na1—Na2 91.82 (3) S2viii—Na2—Na1ix 94.43 (2)
S2iii—Na1—Na2 121.14 (3) S2—Na2—Na1ix 116.91 (2)
S2—Na1—Na2 56.047 (15) V—Na2—Na1ix 132.22 (2)
S1—Na1—Na2 88.24 (2) Vv—Na2—Na1ix 81.417 (19)
V—Na1—Na2 55.184 (18) Na1—Na2—Na1ix 167.21 (3)
O—Na1—Na2iii 36.86 (2) Na2iii—Na2—Na1ix 134.948 (14)
S1i—Na1—Na2iii 147.126 (15) Na1viii—Na2—Na1ix 61.093 (19)
S1ii—Na1—Na2iii 91.82 (3) O—V—S2viii 107.23 (3)
S2iii—Na1—Na2iii 56.047 (15) O—V—S2x 107.23 (3)
S2—Na1—Na2iii 121.14 (3) S2viii—V—S2x 115.15 (2)
S1—Na1—Na2iii 88.24 (2) O—V—S1 106.91 (5)
V—Na1—Na2iii 55.184 (18) S2viii—V—S1 109.968 (17)
Na2—Na1—Na2iii 65.27 (3) S2x—V—S1 109.968 (17)
O—Na1—Na2iv 103.92 (4) O—V—Na2iii 42.53 (3)
S1i—Na1—Na2iv 91.73 (2) S2viii—V—Na2iii 127.68 (2)
S1ii—Na1—Na2iv 45.096 (15) S2x—V—Na2iii 64.763 (17)
S2iii—Na1—Na2iv 48.966 (17) S1—V—Na2iii 118.920 (19)
S2—Na1—Na2iv 139.12 (3) O—V—Na2 42.53 (3)
S1—Na1—Na2iv 134.905 (15) S2viii—V—Na2 64.763 (17)
V—Na1—Na2iv 122.223 (19) S2x—V—Na2 127.68 (2)
Na2—Na1—Na2iv 113.58 (3) S1—V—Na2 118.920 (19)
Na2iii—Na1—Na2iv 68.659 (16) Na2iii—V—Na2 75.85 (3)
O—Na1—Na2v 103.92 (4) O—V—Na1 42.53 (6)
S1i—Na1—Na2v 91.74 (2) S2viii—V—Na1 121.357 (14)
S1ii—Na1—Na2v 45.096 (15) S2x—V—Na1 121.357 (14)
S2iii—Na1—Na2v 139.12 (3) S1—V—Na1 64.38 (2)
S2—Na1—Na2v 48.966 (17) Na2iii—V—Na1 69.34 (2)
S1—Na1—Na2v 134.905 (15) Na2—V—Na1 69.34 (2)
V—Na1—Na2v 122.223 (19) O—V—Na2x 100.50 (3)
Na2iii—Na1—Na2v 113.58 (3) S2x—V—Na2x 62.407 (16)
Na2iv—Na1—Na2v 90.19 (3) S1—V—Na2x 52.447 (11)
O—Na1—Na2vi 130.78 (3) Na2iii—V—Na2x 79.089 (15)
S1i—Na1—Na2vi 44.949 (14) Na2—V—Na2x 141.74 (3)
S1ii—Na1—Na2vi 91.62 (2) Na1—V—Na2x 74.996 (16)
S2iii—Na1—Na2vi 46.290 (14) O—V—Na2viii 100.50 (3)
S2—Na1—Na2vi 135.89 (3) S2viii—V—Na2viii 62.407 (16)
S1—Na1—Na2vi 88.32 (2) S2x—V—Na2viii 151.07 (2)
V—Na1—Na2vi 115.97 (2) S1—V—Na2viii 52.447 (11)
Na2—Na1—Na2vi 167.21 (3) Na2iii—V—Na2viii 141.74 (3)
Na2iii—Na1—Na2vi 102.311 (9) Na2—V—Na2viii 79.089 (15)
Na2iv—Na1—Na2vi 61.531 (16) Na1—V—Na2viii 74.996 (16)
Na2v—Na1—Na2vi 121.60 (3) Na2x—V—Na2viii 104.89 (2)
O—Na2—S1v 150.24 (4) V—S1—Na1xi 162.99 (3)
O—Na2—S2v 104.02 (5) V—S1—Na2x 89.663 (16)
S1v—Na2—S2v 92.99 (2) Na1xi—S1—Na2x 90.432 (15)
O—Na2—S2vii 110.31 (4) V—S1—Na2viii 89.663 (16)
S1v—Na2—S2vii 92.78 (2) Na1xi—S1—Na2viii 90.432 (15)
S2v—Na2—S2vii 92.67 (2) Na2x—S1—Na2viii 178.99 (3)
O—Na2—S2viii 69.49 (5) V—S1—Na1xii 104.90 (3)
S1v—Na2—S2viii 93.33 (2) Na1xi—S1—Na1xii 92.11 (3)
S2v—Na2—S2viii 173.43 (3) Na2x—S1—Na1xii 89.725 (18)
S2vii—Na2—S2viii 88.81 (2) Na2viii—S1—Na1xii 89.725 (18)
O—Na2—S2 82.78 (4) V—S1—Na1 75.02 (3)
S1v—Na2—S2 72.286 (19) Na1xi—S1—Na1 87.96 (3)
S2v—Na2—S2 91.84 (2) Na2x—S1—Na1 90.275 (18)
S2vii—Na2—S2 164.61 (3) Na2viii—S1—Na1 90.275 (18)
S2viii—Na2—S2 88.38 (2) Na1xii—S1—Na1 179.93 (4)
O—Na2—V 29.27 (4) Vv—S2—Na2viii 111.47 (2)
S1v—Na2—V 128.34 (3) Vv—S2—Na2xiii 118.18 (2)
S2v—Na2—V 133.28 (3) Na2viii—S2—Na2xiii 90.78 (2)
S2vii—Na2—V 104.33 (2) Vv—S2—Na1 146.04 (3)
S2viii—Na2—V 40.257 (14) Na2viii—S2—Na1 90.78 (3)
S2—Na2—V 83.010 (16) Na2xiii—S2—Na1 85.42 (2)
O—Na2—Vv 119.64 (4) Vv—S2—Na2v 74.980 (19)
S1v—Na2—Vv 37.890 (14) Na2viii—S2—Na2v 173.43 (3)
S2v—Na2—Vv 82.73 (2) Na2xiii—S2—Na2v 87.04 (2)
S2vii—Na2—Vv 129.48 (2) Na1—S2—Na2v 82.88 (3)
S2viii—Na2—Vv 101.24 (2) Vv—S2—Na2 80.728 (18)
S2—Na2—Vv 36.865 (11) Na2viii—S2—Na2 91.61 (2)
V—Na2—Vv 115.15 (2) Na2xiii—S2—Na2 158.350 (15)
O—Na2—Na1 37.05 (4) Na1—S2—Na2 73.03 (2)
S1v—Na2—Na1 123.05 (2) Na2v—S2—Na2 88.17 (2)
S2v—Na2—Na1 85.66 (2) V—O—Na2iii 108.20 (5)
S2vii—Na2—Na1 144.17 (3) V—O—Na2 108.20 (5)
S2viii—Na2—Na1 89.39 (2) Na2iii—O—Na2 119.47 (7)
supporting information
sup-5
Acta Cryst. (2004). E60, i6–i7
V—Na2—Na1 55.475 (19) Na2iii—O—Na1 106.09 (5)
Vv—Na2—Na1 85.872 (18) Na2—O—Na1 106.09 (5)