title: Monodentate coordination of N-[di(phenyl/ethyl)carbamothioyl]benzamide ligands: synthesis, crystal structure and catalytic oxidation property of Cu(I) complexes.
abstract: New four-coordinated tetrahedral copper(I) complexes have been synthesized from the reactions between [CuCl(2)(PPh(3))(2)] and N-(diphenylcarbamothioyl)benzamide (HL1) or N-(diethylcarbamothioyl)benzamide (HL2) in benzene. These complexes have been characterized by elemental analyses, IR, UV/Vis, (1)H, (13)C and (31)P NMR spectroscopy. The molecular structure of both the complexes, [CuCl(HL1)(2)(PPh(3))] (1) and [CuCl(HL2)(PPh(3))(2)] (2) were determined by single-crystal X-ray diffraction, which reveals distorted tetrahedral geometry around each Cu(I) ion. The combination of 2 (0.005 mmol) with hydrogen peroxide (2.5 mmol) in acetonitrile is found to be an active catalyst for the oxidation of primary and secondary alcohols (0.5 mmol) to their corresponding acids and ketones, respectively, at room temperature.
authors: Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, India.
authors: Nanjappan
authors: N
authors: Gunasekaran
authors: Pandian
authors: P
authors: Ramesh
authors: Mondikalipudur Nanjappa Gounder
authors: MN
authors: Ponnuswamy
authors: Ramasamy
authors: R
authors: Karvembu
mesh_terms: D000438:Alcohols / Q000737:chemistry; D001549:Benzamides / Q000737:chemistry*; D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006861:Hydrogen Peroxide / Q000737:chemistry; D008024:Ligands; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D013696:Temperature
chemical_list: D000438:Alcohols; D001549:Benzamides; D056831:Coordination Complexes; D008024:Ligands; C037689:benzamide; D003300:Copper; D006861:Hydrogen Peroxide