Heteroleptic Dipyrrin/Bipyridine Complexes of Ruthenium(II)

The synthesis and characterization of a series of heteroleptic dipyrrinato/2,2'-bipyridine complexes of ruthenium(II) are reported. Spectroscopic analysis, including resonance Raman, indicates that the complexes are only weakly emissive and that the dipyrrin and Ru -> bipyridine (metal-to-ligand charge transfer) chromophores are uncoupled.