of Cu(II) complexes having 2,2′-bipyridine derivatives with two 1-naphthoylamide groups or two ethyl dimethylmalonylamide moieties at 6 and 6′ positions as ligands were prepared and characterized by X-ray crystallography and spectroscopic methods. Those ligands bound to the Cu(II) centers in a tetradentate fashion including two amide oxygen atoms in the equatorial planes. Those complexes were found
A novel Cu(II) complex bearing a 2,2′-bipyridine derivative with malonylamide moieties showed regioselective molecular recognition behaviour toward m-aminobenzoic acid by both coordination and hydrogen bonding and this recognition should be an induced fit to the flexible recognition site of the Cu(II) complex.