Synthesis, structure, and characterization of dicopper(II) complex with a new amidate ligand

The dicopper(II) complex, (NBu4)2[Cu2(L3-H)2] (1), with a new terdentate ONO-ligand (H3L3-H) containing amide nitrogen has been prepared. X-ray crystallographic analysis reveals that the complex has a di-μ-alkoxo-bridged dicopper(II) structure. Magnetic measurements for 1 indicate that a strong antiferromagnetic interaction is operative in the dicopper core with −2J value of 750 cm−1. Cyclic voltammograms of 1 showed irreversible oxidation waves at +0.62 and +0.88 V which was assigned as metal centered oxidations.