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.