title: Mononuclear Ru(III) Schiff base complexes: synthesis, spectral, redox, catalytic and biological activity studies.
abstract: An octahedral ruthenium(III) Schiff base complexes of the type [RuX(EPh(3))(L)] (where, X=Cl/Br; E=As/P; L=dianion of the Schiff bases derived from acetoacetanilide with o-phenylenediamine and salicylaldehyde/o-hydroxyacetophenone/o-vanillin/2-hydroxy-1-naphthaldehyde) have been synthesized from the reactions of equimolar reactions of [RuX(3)(EPh(3))(3)] and Schiff bases in benzene. The new Ru(III) Schiff base complexes have been characterized by elemental analyses, FT-IR, electronic, (1)H NMR and (13)C NMR spectra, EPR spectral studies, powder X-ray diffraction (XRD) and electrochemical studies. The new complexes were found to be effective catalysts for aryl-aryl coupling and the oxidation of alcohols into their corresponding carbonyl compounds, respectively, using molecular oxygen atmosphere at ambient temperature. Further, the new Ru(III) Schiff base complexes were screened for their antibacterial activity against Pseudomonas aeruginosa, Vibrio cholera, Salomonella typhi and Staphylococcus aureaus.
authors.affiliation: Post Graduate and Research Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore 641020, India.
authors.forename: N Padma
authors.initials: NP
authors.lastname: Priya
authors.forename: S
authors.initials: S
authors.lastname: Arunachalam
authors.forename: A
authors.initials: A
authors.lastname: Manimaran
authors.forename: D
authors.initials: D
authors.lastname: Muthupriya
authors.forename: C
authors.initials: C
authors.lastname: Jayabalakrishnan
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology; D001554:Benzene / Q000737:chemistry; D002384:Catalysis; D004560:Electricity; D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D010084:Oxidation-Reduction; D011208:Powders; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D012428:Ruthenium / Q000737:chemistry*; D012485:Salmonella typhi / Q000187:drug effects; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D013053:Spectrophotometry / Q000379:methods*; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects; D014734:Vibrio cholerae / Q000187:drug effects; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D011208:Powders; D012545:Schiff Bases; D012428:Ruthenium; D001554:Benzene