title: Ruthenium(II) hydrazone Schiff base complexes: synthesis, spectral study and catalytic applications.
abstract: Ruthenium(II) hydrazone Schiff base complexes of the type [RuCl(CO)(B)(L)] (were B=PPh(3), AsPh(3) or Py; L=hydrazone Schiff base ligands) were synthesized from the reactions of hydrazone Schiff base ligand (obtained from isonicotinoylhydrazide and different hydroxy aldehydes) with [RuHCl(CO)(EPh(3))(2)(B)] (where E=P or As; B=PPh(3), AsPh(3) or Py) in 1:1 molar ratio. All the new complexes have been characterized by analytical and spectral (FT-IR, electronic, (1)H, (13)C and (31)P NMR) data. They have been tentatively assigned an octahedral structure. The synthesized complexes have exhibited catalytic activity for oxidation of benzyl alcohol to benzaldehyde and cyclohexanol to cyclohexanone in the presence of N-methyl morpholine N-oxide (NMO) as co-oxidant. They were also found to catalyze the transfer hydrogenation of aliphatic and aromatic ketones to alcohols in KOH/Isopropanol.
authors.affiliation: Department of Chemistry, Periyar University, Salem, India.
authors.forename: R
authors.initials: R
authors.lastname: Manikandan
authors.forename: P
authors.initials: P
authors.lastname: Viswanathamurthi
authors.forename: M
authors.initials: M
authors.lastname: Muthukumar
mesh_terms: D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D006835:Hydrazones / Q000138:chemical synthesis / Q000737:chemistry*; D006865:Hydrogenation; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D012428:Ruthenium / Q000737:chemistry*; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D056831:Coordination Complexes; D006835:Hydrazones; D012545:Schiff Bases; D012428:Ruthenium