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--aqua-octaaqua--decavanadato-dilithium(I)tetrasodium(I)] [Li₂Na₄(H₂O)₁₈{V₁₀O₂₈}]_n, consists of polymeric chains composed of centrosymmetric [V₁₀O₂₈]^6- polyanions with C_i 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-HO hydrogen bonds stabilize the polymeric chain structure, while interchain OW-HO hydrogen bonds link neighbouring polymeric chains to form the complete supramolecular structure.

Online 27 July 2005

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