metal-organic compounds
The structure of the title complex, [Cu(NO3)2(C27H26O2P2)]n, consists of polymeric chains formed by propane-1,3-diylbis(diphenylphosphine oxide) ligands bridging between metal centres. The Cu atom lies on a twofold rotation axis and a further symmetry centre bisects the bridging bisphosphine dioxide ligand. The CuO6 coordination geometry is a distorted octahedron, with the bidentate chelating nitrate groups adopting a cis configuration.