Copper(II) complexes of a novel ligand 4,5-dicyanoimidazole: Structural and magnetic studies

Abstract

The potential use of 4,5-dicyanoimidazolate ion (DCI-) as a bridging ligand for magnetically interesting co-ordination polymers has been explored. New CuII-bipy complexes containing DCI- were prepared and characterised; crystal structure analysis revealed DCI- co-ordinated CuII in one of the complexes. The ESR and magnetic susceptibility studies showed that the compounds are nearly Curie paramagnetic or weakly antiferromagnetic. A polymeric structure is proposed for one of the complexes.