Acta Cryst. (2003). E59, i122-i124  [ doi:10.1107/S1600536803016453 ]

Potassium-sodium double salt of decavanadate, K₄Na₂[V₁₀O₂₈]·10H₂O

U. Lee and H.-C. Joo

Abstract: The double salt tetrapotassium disodium decavanadate decahydrate, K₄Na₂[V₁₀O₂₈]·10H₂O, crystallizes in the triclinic system in space group P. The centrosymmetric [V₁₀O₂₈]^6- polyanion forms a three-dimensional network via O_polyanionK⁺O_polyanion coordination with K⁺ ions and O_polyanionH-O_waterNa⁺ hydrogen bonds. The VV distances are in the range 3.0601 (9)-3.271 (1) Å, and the four types of V-O bond lengths are in the ranges 1.597 (2)-1.621 (2) (Ot), 1.920 (2)-2.020 (2) (Oc), 1.682 (2)-2.072 (2) (Ob) and 2.088 (2)-2.368 (2) Å (Oh).

Online 31 July 2003

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