Synthesis and properties of mononuclear tris(heteroleptic) osmium(II) complexes containing bidentate polypyridyl ligands

Abstract

A general synthetic methodology has been elaborated for tris(bidentate ligand)osmium(II) complexes containing three different polypyridyl ligands. The tris(heteroleptic) complexes were characterized by NMR techniques, and the ligand dependence of their electrochemistry and electronic spectroscopy examined.