Poly[[diaquadeca-μ2-cyanido-κ20C:N-hexacyanido-κ6C-bis(μ2-5-methylpyrimidine-κ2N:N′)bis(5-methylpyrimidine-κN)tricopper(II)ditungstate(V)] dihydrate]

Abstract

In the title complex, {[Cu3[W(CN)8]2(C5H6N2)4(H2O)2]·2H2O}n, the coordination polyhedron of the eight-coordinated WV atom is a bicapped trigonal prism, in which five CN groups are bridged to CuII ions, and the other three CN groups are terminally bound. Two of the CuII ions lie on a centre of inversion and each of the three independent CuII cations is pseudo-octahedrally coordinated. In the crystal structure, cyanido-bridged-Cu—W—Cu layers are linked by pillars involving the third independent CuII ion, generating a three-dimensional network with non-coordinating water molecules and 5-methylpyrimidine molecules. O—H...O and O—H...N hydrogen bonds involve the coordinating and non-coordinating water molecules, the CN groups and the 5-methylpyrimidine molecules.