Binuclear radical complexes of heavy-metal fragments containing ruthenium, osmium, rhodium and gold
Abstract
Homobinuclear chelate complexes of the 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine anion radical ligand with the metal fragments [Os(bpy)]2+(d6), [Rh(norbonadiene)]+(d8) and [Au(PPh3)]+(d10) have been studied by ESR spectroscopy. The unique suitability of this radical ligand for coordination of heavy metal fragments and for ESR investigations is discussed.