[1,5-Bis(1-methyl-1H-tetrazol-5-yl-kappa N)-3-oxopentane-kappa O]dichlorocopper(II)

The title compound, [CuCl2(C8H14N8O)], is the rrst structurally characteriz ed molecular chelate complex of a binuclear N-substituted tetrazole. The Cu atom is five-coordinate, with an approximately square-pyramidal geometry. The equatorial positions of the pyramid are occupied by two Cl atoms and tw o N atoms from the ligand molecule; the O atom of the ligand lies in the ax ial position. Each complex is connected to four others via weak C-H . . . C l and C-H . . .N interactions, forming sheets parallel to the (010) plane.