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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/118/04/0341-0344

    • Keywords

       

      Ultraviolet photolysis; carbon tetrachloride; gas phase; resonance enhanced multiphoton ionization; quantum yield

    • Abstract

       

      In this paper, we have probed the dynamics of chlorine atom production from the gas phase photodissociation of carbon tetrachloride at 222 and 235 nm. The quantum yield, φ* of Cl* (2P1/2) production has been determined by probing the nascent concentrations of both excited (2P1/2) and ground state (2P3/2) chlorine atoms by suitable resonance-enhanced multiphoton ionization (REMPI) detection schemes. Although at the photolysis wavelengths the absorption of carbon tetrachloride is weak, significant amounts of Cl* are produced. Surprisingly, the quantum yield of Cl* production does not follow the absorption spectrum closely, which gives rise to the possibility of an indirect dissociation mechanism present in CCl4 along with direct dissociation at these ultraviolet wavelengths

    • Author Affiliations

       

      Manish Tak1 Manabendra Chandra1 Dulal Senapati1 Puspendu K Das1

      1. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore - 560 012

    • Dates

       
      Published
      July 2006
      Manuscript received
      1 March 2006
      Manuscript revised
      22 May 2006

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