Acta Cryst. (2006). E62, i176-i178  [ doi:10.1107/S1600536806029382 ]

Dipotassium tetrasodium decavanadate octadecahydrate

U. Lee

Abstract: The title double salt, K₂Na₄[V₁₀O₂₈]·18H₂O, crystallizes with a decavanadate polyanion that has twofold crystallographic symmetry. All atoms in the structure are on general positions, except two Na atoms which are located on a twofold axis. In the crystal structure, chains made up of edge- and face-sharing [KO₉] and [NaO₆] polyhedra are interconnected by the decavanadate anions to form a three-dimensional network. The decavanadate polyanion exhibits the typical ranges in VV and the four types of V-O distances.

Online 2 August 2006

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