Benzotriazole as a structural component in chelating and bridging heterocyclic ligands; ruthenium, palladium, copper and silver complexes

Abstract

The coordination chemistry of five N,N′-bidentate ligands that contain a 1-substituted benzotriazole subunit has been studied. Spectroscopic and electrochemical studies of their chelated ruthenium bis(2,2′-bipyridine) complexes have shown that the benzotriazole group is a relatively electron rich component. X-Ray crystal structures are reported for one-dimensional polymeric copper and silver complexes of di(benzotriazol-1-yl)methane, mononuclear and dinuclear copper and silver complexes of 1-(2-pyridyl)benzotriazole (in which the ligand displays chelating, monodentate and bridging modes of coordination, respectively), bridged binuclear palladium, copper and silver complexes of 1-(2-pyridylmethyl)benzotriazole and a tetranuclear copper complex of 1-(1-isoquinolyl)benzotriazole.