Acta Cryst. (2008). E64, m1442-m1443  [ doi:10.1107/S1600536808032947 ]

Poly[[diaquadeca--cyanido-hexacyanidobis(4-cyanopyridine)di--pyrimidine-tricopper(II)ditungsten(V)] dihydrate]

S. Kaneko, Y. Tsunobuchi, K. Nakabayashi and S. Ohkoshi

Abstract: In the polymeric title compound, {[Cu₃W₂(CN)₁₆(C₄H₄N₂)₂(C₆H₄N₂)₂(H₂O)₂]·2H₂O}_n, the coordination geometry of W is an eight-coordinated bicapped trigonal prism. Five of the CN groups of [W(CN)₈] are bridged to Cu ions. The coordination geometries of the Cu atoms are each pseudo-octahedral; one Cu atom is located on a centre of inversion. The cyano-bridged W-Cu layers are linked by Cu-containing pillars, to form a three-dimensional network with cavities occupied by noncoordinated water and 4-cyanopyridine molecules.

Online 18 October 2008

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