Acta Cryst. (2004). E60, i105-i107  [ doi:10.1107/S1600536804017416 ]

Décavanadate sel double de dilithium et tétraammonium décahydrate, (NH₄)₄Li₂[V₁₀O₂₈]·10H₂O

R. Ksiksi, M. Graia, A. Driss and T. Jouini

Abstract: In the title compound, the centrosymmetric polyanion consists of ten VO₆ edge-sharing distorted octahedra. Each of the two Li⁺ cations is surrounded by six water molecules in a distorted octahedral arrangement. The VV distances are in the range 3.078  (5)-3.101  (5)  Å and the four types of V-O bond lengths are in the range 1.601  (2)-2.361  (2)  Å. The title compound is isostructural with (NH₄)₄Na₂[V₁₀O₂₈]·10H₂O and K₄Na₂[V₁₀O₂₈]·10H₂O. It provides the first example of a decavanadate salt of a lithium cation.

Online 24 juillet 2004

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