(IUCr) A new sodium dimangnesium trivanadate, NaMg2V3O10

Volume 64
Part 3
Page i21
March 2008

Received 13 December 2007
Accepted 29 January 2008
Online 20 February 2008

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (Mg-O) = 0.003 Å
R = 0.033
wR = 0.096
Data-to-parameter ratio = 11.7
Details

A new sodium dimangnesium trivanadate, NaMg₂V₃O₁₀

Brahim Ayed ^a ^* and Amor Haddad ^b

^aInstitut Préparatoire aux Études d'Ingénieur de Monastir, Avenue Ibn-El-Jazzar, 5019 Monastir, Tunisia, and ^bDépartament de Chimie, Faculté des Sciences de Monastir, 5000 Monastir, Tunisia
Correspondence e-mail: brahimayed@yahoo.fr

A single crystal of NaMg₂V₃O₁₀ has been prepared by solid-state reaction at 1173 K. The [Mg₂(V₃O₁₀)]^- anions are built up from edge-sharing MgO₆ octahedra to form [Mg₄O₁₈] units, which are linked to each other by trivanadate groups (V₃O₁₀). The Na⁺ ions are located in the tunnel space.

Related literature

For related literature, see: Barbier (1988); Brown & Altermatt (1985); Gopal & Calvo (1974); Krishnamachari & Calvo (1971); Mitiaev et al. (2004); Murashova et al. (1988a, 1988b); Ng & Calvo (1972); Saux & Galy (1973).

Experimental

Crystal data

NaMg₂V₃O₁₀
M_r = 384.42
Triclinic, $[P \overline 1]$
a = 6.7369 (1) Å
b = 6.7553 (1) Å
c = 9.6222 (1) Å
= 104.325 (1)°
= 100.604 (1)°
= 101.696 (1)°
V = 402.63 (1) Å³
Z = 2
Mo K radiation
= 3.66 mm^-1
T = 293 (2) K
0.4 × 0.07 × 0.03 mm

Data collection

Enraf-Nonius CAD-4 diffractometer
Absorption correction: scan (North et al., 1968) T_min = 0.871, T_max = 0.965 (expected range = 0.809-0.896)
3118 measured reflections
1712 independent reflections
1415 reflections with I > 2(I)
R_int = 0.049
2 standard reflections frequency: 120 min intensity decay: 0.4%

Refinement

R[F² > 2(F²)] = 0.033
wR(F²) = 0.095
S = 1.06
1712 reflections
146 parameters
_max = 0.73 e Å^-3
_min = -1.18 e Å^-3

Table 1
Selected bond lengths (Å)

V1-O4	1.672 (3)
V1-O6	1.688 (3)
V1-O2	1.704 (3)
V1-O1	1.806 (3)
V2-O9	1.643 (3)
V2-O10	1.694 (3)
V2-O7	1.717 (3)
V2-O5	1.848 (3)
V3-O8	1.642 (3)
V3-O3	1.655 (3)
V3-O1ⁱ	1.757 (3)
V3-O5ⁱⁱ	1.827 (3)
Symmetry codes: (i) -x, -y, -z+1; (ii) -x, -y-1, -z.

Data collection: CAD-4 EXPRESS (Duisenberg, 1992; Macícek & Yordanov, 1992); cell refinement: CAD-4 EXPRESS; data reduction: MolEN (Fair, 1990); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BR2067 ).

References

Barbier, J. (1988). Eur. J. Solid State Inorg. Chem. 25, 609-619.
Brandenburg, K. (1998). DIAMOND. University of Bonn, Germany.
Brown, I. D. & Altermatt, D. (1985). Acta Cryst. B41, 244-247.
Duisenberg, A. J. M. (1992). J. Appl. Cryst. 25, 92-96.
Fair, C. K. (1990). MolEN. Enraf-Nonus, Delft, The Netherlands.
Gopal, R. & Calvo, C. (1974). Acta Cryst. B30, 2491-2493.
Krishnamachari, N. & Calvo, C. (1971). Can. J. Chem. 49, 1629-1637.
Macícek, J. & Yordanov, A. (1992). J. Appl. Cryst. 25, 73-80.
Mitiaev, A., Mironov, A., Shpanchenko, R. & Antipov, E. (2004). Acta Cryst. C60, i56-i58.
Murashova, E. V., Velikodnyi, Yu. A. & Trunov, V. K. (1988a). Zh. Strukt. Khim. 29, 182-184.
Murashova, E. V., Velikodnyi, Yu. A. & Trunov, V. K. (1988b). Russ. J. Inorg. Chem. (Zh. Neorg. Khim.), 33, 904-905.
Ng, H. N. & Calvo, C. (1972). Can. J. Chem. 50, 3619-3624.
North, A. C. T., Phillips, D. C. & Mathews, F. S. (1968). Acta Cryst. A24, 351-359.
Saux, M. & Galy, J. (1973). C. R. Acad. Sci. Ser. C, 276, 81-84.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.

inorganic compounds

A new sodium dimangnesium trivanadate, NaMg2V3O10