THE SEQUENCE OF LIGAND REDUCTIONS IN HETEROLEPTIC RUTHENIUM-DIIMINE COMPLEXES - CALCULATION OF REDOX POTENTIALS AS A DIAGNOSTIC-TOOL

The redox potentials of diimine mixed-ligand ruthenium complexes were remeasured under identical conditions, The Hubbard Hamiltonian formali sm including solvation contribution was used for the enumeration of th e energies of all possible configurations which might come into accoun t in the redox series of these complexes. The comparison of the experi mental and calculated half-wave potential sequences based on theoretic ally calculated electron affinities, combined with analysis of spectra of reduction products, enabled the assignment of electron localizatio n along the redox series.