Guanidine anions as chelating ligands; syntheses and crystal structures of [Rh(η-C5Me5){η2-(NPh)2CNHPh}Cl] and [Ru(η-MeC6H4Pri-p)-{η2-(NPh)2CNHPh}Cl]
Abstract
Treatment of the chloro-bridged dimers [{Rh(η-C5Me5)Cl2}2] and [{Ru(η-MeC6H4Pri-p)Cl2}2] with 1,2,3-triphenylguanidine in toluene solution led to the formation of [Rh(η-C5Me5){η2-(NPh)2CNHPh}Cl]1 and [Ru(η-MeC6H4Pri-p){η2-(NPh)2CNHPh}Cl]2 respectively. These represent the first examples of complexes containing guanidine anions as chelating ligands. Crystal structure analyses of both complexes have been performed.