A new mixed-ligand one dimensional complex via hydrogen bonds: Cu(Mal)(bpy)·2H2O (Mal=Malonate ion, bpy=2,2′-bipyridine)

A new hydrogen-bonded one dimensional complex, Cu(Mal)(bpy)·2H2O (Mal=Malonate ion, bpy=2,2′-bipyridine), has been synthesized and characterized by X-ray single crystal structure analysis. The copper atom is five-coordinated in a distorted square pyramidal environment to two oxygen atoms of Mal, two nitrogen atoms of the bpy ligand and an oxygen atom of water. The IR, electronic spectrum and ESR of the title compound have been studied.