SYNTHESIS AND CHARACTERIZATION OF TERNARY BINUCLEAR COPPER (II) COMPLEXES WITH LONG DIPHENYL ETHER BRIDGING GROUP: PHYSICOCHEMICAL AND MAGNETIC STUDIES

Abstract

Binuclear complexes of have been synthesized by the reaction of aromatic diamine with ternary complexes of copper (II) with 2,2’-bipyridyl or 1,10-phenanthroline (as primary ligand) and 2-hydroxybenzaldehyde or 2-hydroxynaphathaldeyde or 2- hydroxyl-3-methoxybenzaldehyde (as secondary ligand). Copper (II) complexes have been characterized using various physicochemical and various spectroscopic methods (IR, ESR and mass spectrometry). The variable temperature magnetic susceptibility (90Kto300K) measurements showed weak antiferromagnetic to ferromagnetic exchange between the proximate Cu (II) ions in a complex. Molecular modeling has been used to acquire various geometrical parameters of the complex and correlated with the magnetic property.