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      https://www.ias.ac.in/article/fulltext/pram/071/02/0211-0232

    • Keywords

       

      Linear stability; non-polar solvation dynamics; solvation time scale.

    • Abstract

       

      We analyse the origin of the multiple long time scales associated with the long time decay observed in non-polar solvation dynamics by linear stability analysis of solvent density modes where the effects of compressibility and solvent structure are systematically incorporated. The coupling of the solute–solvent interactions at both ground and excited states of the solute with the compressibility and solvent structure is found to have important effects on the time scales. The present theory suggests that the relatively longer time constant is controlled by the solvent compressibility, while the solvent structure at the nearest-neighbour length scale dominates the shorter time constant.

    • Author Affiliations

       

      Susmita Kar1 Ranjit Biswas1 2 J Chakrabarti1 3

      1. Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Salt Lake City, Kolkata 700 098, India
      2. Unit for Nanoscience and Technology, S.N. Bose National Centre for Basic Sciences, JD Block, Salt Lake City, Kolkata 700 098, India
      3. Advanced Materials Research Unit, S.N. Bose National Centre for Basic Sciences, JD Block, Salt Lake City, Kolkata 700 098, India

    • Dates

       
      Published
      August 2008

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