Synthesis, spectral characterization, CC coupling, oxidation reactions and antibacterial activities of new ruthenium(III) Schiff base complexes

Abstract

Abstract A new series of hexa‐coordinated stable Ru(III) Schiff base complexes of the type [RuX(EPh 3 )(L)] (where X = Cl/Br; E = P/As; L = tetradentate N 2 O 2 donor Schiff ligands) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurement, FT‐IR, UV–vis, 13 C{ 1 H}‐NMR, ESR spectra, electrochemical and powder X‐ray diffraction pattern studies. The selective oxidation of alcohols to their corresponding carbonyl compounds occurred in the presence of N ‐methylmorpholin‐ N ‐oxide (NMO), H 2 O 2 and O 2 atmosphere at ambient temperature as co‐oxidants and CC coupling reactions. Further, these new Schiff base ligands and their Ru(III) complexes were also screened for their antibacterial activity against K. pneumoniae, Shigella sp., M. luteus , E. coli and S. typhi . Copyright © 2010 John Wiley & Sons, Ltd.