• Conformations of dibenzylideneacetone: An IR spectroscopic study

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      https://www.ias.ac.in/article/fulltext/jcsc/099/05-06/0419-0424

    • Keywords

       

      Dibenzylideneacetone; triplet C=O band; skew conformation; polarity of the conformers; stability of conformers

    • Abstract

       

      The conformational analysis of dibenzylideneacetone has been carried out using IR spectroscopy. Appearance of a triplet C=O band is attributed to the coexistence of three conformers viz s-cis, cis, s-cis, trans and nonplanar s-trans, trans in contrast to the earlier findings which showed the existence of only two conformers. The relative proportions of the conformers are in the order s-cis, trans> nonplanar s-trans, trans> s-cis, cis in less polar solvents and nonplanar s-trans, trans> s-cis, trans> s-cis, cis in more polar solvents.

    • Author Affiliations

       

      G Venkateshwarlu1 B Subrahmanyam1

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

       
  • Journal of Chemical Sciences | News

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