Poly[bis-(2,2'-bipyridine-κN,N')deca-μ-oxido-dioxidodicopper(II)tetra-vanadium(V)]

Acta Crystallogr Sect E Struct Rep Online. 2008 Jan 4;64(Pt 2):m287-8. doi: 10.1107/S1600536807067979.

Abstract

The title compound, [Cu(2)V(4)O(12)(C(10)H(8)N(2))(2)](n), shows a two-dimensional copper-vanadate layer composed of eight-membered rings, each containing four corner-sharing VO(4) tetra-hedra; these are linked through six penta-coordinated Cu(II) atoms with the 2,2'-bipyridine ligands attached and pointing above and below the plane of the layer. The Cu atom is coordinated by two N donors from the 2,2'-bipyridine ligand and three O atoms from three adjacent VO(4) units to form a distorted tetragonal pyramid. These layers are further connected by π-π inter-actions between inter-leaving bipyridine ligands of adjacent layers [centroid-centroid distances = 3.63 (1) and 3.68 (1) Å] into a three-dimensional supra-molecular structure.