Oxo-linked diruthenium(III) complex with 2,2′-bipyridine in ortho-metalation

Oxo-bridged dinuclear ruthenium(III) complex [Ru2(μ-O){η2(N,N)-bpy}2{μ-η1(C),η2(N,N)-bpy}2](PF6)2 (1) with ortho-metalated 2,2′-bipyridine (bpy) was synthesized and characterized by X-ray crystallography. Electrochemical studies revealed that the image complex exhibits four reversible or quasi-reversible redox processes due to successive oxidation or reduction of the diruthenium centers.