Ruthenium carbonyl complex of a redox non-innocent ONS donor azophenol ligand: Electrochemistry, photophysical property, electronic structure and catalytic activity towards oxidation of alcohols

A ruthenium carbonyl complex, [Ru(CO)2(L)(Cl)2] (1) of a redox non-innocent thioether-containing azo-phenol ligand has been synthesized and characterized. Cyclic voltammogram of 1 exhibits Ru(II)/Ru(III) quasireversible oxidation (E1/2 = 1.22 V) along with ligand based reductions. DFT calculations have been used to interpret the electronic structure of the complex. Catalytic activities towards oxidation of alcohols have been studied.181