Poly[bis(2,2′-bipyridine-κ² N,N′)deca-μ- oxido-dioxidodicopper(II)tetra-vanadium(V)]

The title compound, [Cu2V4O12(C10H8N2)2] n , shows a two-dimensional copper-vanadate layer composed of eight-membered rings, each containing four corner-sharing VO4 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 VO4 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.