A spectral study of bis-2,2′-bipyridyl complexes of iron, ruthenium, and osmium

Abstract

Electronic spectra have been recorded for a series of octahedral compounds [M(bipy)₂X₂] and [M(bipy)₂X₂]X′, where M = Fe, Ru, and Os, X,X′= Cl, Br, and I, and X₂= 2,2′-bipyridyl. Certain of the electronic spectral bands have been assigned to metal-oxidation and metal-reduction spectra. Shifts in these bands have, in some cases, been correlated with the bonding between metal and ligand.