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Acta Cryst. (2005). E61, i185-i187  [ doi:10.1107/S1600536805023123 ]

Polymeric bis(lithium disodium nonahydrate) decavanadate, {[LiNa2(H2O)9]2[V10O28]}n

C.-A. Ma, A.-L. Xie and L.-B. Wang

Abstract: The crystal structure of the title compound, poly[deca-[mu]-aqua-octaaqua-[mu]-decavanadato-dilithium(I)tetrasodium(I)] [Li2Na4(H2O)18{V10O28}]n, consists of polymeric chains composed of centrosymmetric [V10O28]6- polyanions with Ci symmetry linked by [LiNa2(H2O)9]3+ cation groups via O-polyanion-Na-group-O-polyanion coordination, with Na-O bond lengths of 2.366 (2)-2.495 (2) Å. The lithium disodium nonahydrate is composed of two NaO6 octahedra and one LiO4 tetrahedron. Hydrogen bonds occur between the polyanion and the cation group, and within the cation group. Intrachain OW-H...O hydrogen bonds stabilize the polymeric chain structure, while interchain OW-H...O hydrogen bonds link neighbouring polymeric chains to form the complete supramolecular structure.

Online 27 July 2005

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