Synthesis, crystal structure and Thermogravimetry of ortho-phthalic acid bridged coordination polymer of Copper(II)

Coordination polymer of Cu(II) bridged by o-phthalic acid alone is not known. The reaction of CuCl2 center dot 2H(2)O with (2-butoxycarbonyl)benzoic acid yielded three dimensional coordination polymer bridged by o-phthalic acid. X-ray crystal structure shows structure with monoclinic P2(1)/c space group. o-Phthalic acid molecules act as bridge between two Cu(II), one carboxylate binds to one Cu(II) as bidentate while the other carboxylate binds to another Cu(II) as monodentate. The four planar co-ordination positions of Cu(II) are satisfied by two chelated carboxylates while fifth and sixth co-ordination positions are satisfied by monodentate carboxylates. EPR and TGA of the coordination polymer are also reported.