Ruthenium carbonyl complex bearing thioether containing Schiff base ligand: Structure, electrochemistry and catalytic activity

Abstract

New ruthenium(II) carbonyl complex, <i>cis</i>-(CO)-<i>trans</i>-(Cl)-[Ru(CO)₂(L)Cl₂] (<b>1</b>) (L = 2-(methylthio)-N-((pyridine-2-yl)methylene)benzenamine) has been synthesized and characterized by several spectroscopic techniques. The geometry of the complex has been confirmed by single crystal X-ray structure. Cyclic voltammogram of (<b>1</b>) exhibits irreversible Ru(II)/Ru(III) oxidation and ligand based reduction. The electronic structure, redox properties, absorption and emission properties of the complex have been interpreted by DFT and TDDFT calculations. The complex efficiently catalyzes the oxidation of alcohols in presence of N-methylmorpholine-N-oxide.