A novel (E,E)-dioxime and its mono-, di- and trinuclear complexes bearing tetradentate octyl sulfanyl phenylamino substituents. Synthesis, characterization and electrochemical properties of its transition metal complexes

Abstract

A new vic-dioxime, 13,14-bis-(hydroxyimino)-9,12,15,18-diazadithiaoctacosane, has been synthesized from 2octylsulfanylaminobenzene and (E,E¢)-dichloroglyoxime. Mononuclear transition metal complexes of Ni II ,C u II , Co II and Fe II have been prepared and were found to have a metal–ligand ratio of 1:2. The synthesis of di- and trinuclear complexes was achieved with U IV O2 and Cu II depending on the stoichiometry of the reactants. The complexes were characterized by elemental analysis, 1 H-n.m.r., u.v.–vis, i.r., f.a.b.-m.s. and by cyclic voltammetry.