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

摘要

The potential use of 4, 5-dicyanoimidazolate ion (DCI~-) as a bridging ligand for magnetically interesting co-ordination polymers has been explored. New Cu~(II)~-bipy complexes containing DCI~- were prepared and characterized; crystal structure analysis revealed DCI~- co-ordinated Cu~(II) 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.