A new unsymmetrical vic-dioxime bearing salicylaldehyde 4-aminobenzoylhydrazone and its homo-and heterotrinuclear complexes with copper(II) and nickel(II) ions

Abstract

A new vic-dioxime, N-{4-[[(2-hydroxyphenyl)methylene]hydrazinecarbonyl]phenyl}aminoglyoxime (H3L), was prepared by the reaction of anti-chloroglyoxime with salicylaldehyde 4-aminobenzoylhydrazone. The reaction of H3L with Cu(II) salts and an appropriate simple ligand gave only homotrinuclear complexes [Cu3(HL)2X2], whereas the reaction of H3L with Ni(II) salts gave mono-and homotrinuclear complexes [Ni(H2L)2 and Ni3(HL)2X2]. Also, heterotrinuclear complexes of H3L were prepared by the reaction of Ni(H2L)2 with Cu(II) salt and an appropriate simple ligand, [NiCu2(HL)2X2], X = Cl−, NO 3 − , SCN−, CN−, and N 3 − . The new vic-dioxime and its complexes were identified by elemental analyses, IR, 1H NMR, UV-VIS, magnetic susceptibility, and mass spectral data. The elemental analyses and spectral data indicated that the hydrazone side of H3L acted as monobasic tridentate and the fourth position was occupied by simple ligands, such as Cl−, NO 3 − , SCN−, CN−, and N 3 − .