Dinuclear and dendritic polynuclear ruthenium(II) and osmium(II) polypyridine complexes: electrochemistry at very positive potentials in liquid SO2

A study was conducted on the electrochemistry at very positive potentials in liquid SO2 of RuII and OsII dendritic polynuclear complexes and of several of their lower-nuclearity analogues. The experiments resulted in the observation of several metal- and ligand-centered oxidations which were previously inaccessible. The findings also suggest that the redox properties can also be employed as a powerful tool for the chemical characterization of large and highly charged supermolecules.