• Infrared intensity analysis of CH2Cl2 and CD2Cl2 in vapour and liquid states

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    • Keywords

       

      Infrared intensity analysis; dipole moments

    • Abstract

       

      In the infrared spectra of molecules with more than one C-H bond the symmetric and antisymmetric stretching bonds often overlap, causing uncertainty in the intensity analysis. For CH2Cl2 and CD2Cl2 in the vapour state, the two bands overlap to such an extent that Straley who takes it as one band attributes it to antisymmetric stretching while Saekiet al assign it to the symmetric stretching. Following the method of analysis initiated in this laboratory, we have solved this problem by ultimately obtaining intensities separately forA1 andB2 species. The band is mostly due to the symmetric stretching, 0.06 out of the total of 0.31 contributing toB2. Thus, this gives a method of separating the intensities of bands which are highly overlapping.

    • Author Affiliations

       

      Pratibha Naik1 N Rajeswara Rao1

      1. Department of Physics, Osmania University, Hyderabad - 500 007
    • Dates

       
  • Pramana – Journal of Physics | News

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