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  • Chem Sci Trans., 2013, 2(2),  pp 429-434  

    DOI:10.7598/cst2013.376

    Research Article

    Kinetics and Mechanism of Oxidation of Methyl Phenyl Sulphide by Imidazolium Fluorochromate

  • N.M.I. ALHAJI, A. SHAJAHAN and G.K. AYYADURAI
  • P.G. and Research Department of Chemistry, Khadir Mohideen College, Adirampattinam-614701, India
    Department of Chemistry, B.S. Abdur Rahman University, Chennai 600 048, India
    Department of Chemistry, Sri Sai Ram Engineering College, Chennai 600 044, India
  • Abstract

    The kinetics of oxidation of methyl phenyl sulphide (MPS) by imidazolium fluorochromate (IFC) in acetonitrile - water (1:1) mixture at 303 K in presence of perchloric acid was followed spectrophotometrically at 360 nm. The reaction was carried out under pseudo first order conditions ([MPS] >> [IFC]). The reaction was first order each in MPS and IFC and fractional order in H+. Also it has been found that the reaction was not affected by ionic strength of medium changed by altering the concentration of the sodium perchlorate. However increase in the acetonitrile content of the medium increases the rate of the reaction. These observations were well analyzed in favour of a SN2 type of mechanism.

    Keywords

    Sulphide, IFC, Oxidation, Spectrophotometry

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