Solid state coordination chemistry of the copper halide- and pseudo-halide-organoamine system, Cu-X-((bis-2,3-(2-pyridyl)pyrazine)) (X = Cl, Br, CN): hydrothermal synthesis and structural characterization

The compounds (Cu3Cl3(bipypy)), (CuBr(bipypy))2, (Cu2Br2(bipypy)) and (Cu3(CN)3(bipypy)) were prepared from mixtures of the copper halide salts and the ligand bis-2,3-(2-pyridyl)pyrazine (bipypy) in hydrothermal media. The utilization of the bipypy molecule as a potential bridging ligand permitted the preparation of a series of new copper halides and pseudo-halide compounds. Not only were novel one- and two-dimensional solid-state inorganic-organic composite phases were synthesized and structurally characterized but a unique neutral molecular dimer was observed.