Heteroleptic 5,5′-disubstituted-2,2′-bipyridine complexes of ruthenium(II): Spectral, electrochemical, and structural investigations

Abstract

Substituents at 5,5′ positions of a bpy ligand result in a greater effect on the reduction than the oxidation potentials of RuII polypyridine complexes. Consequently, the 5,5′ substituents strongly influence the energy of MLCT absorption and emission.