Vibrational Cooling Process of S1  <i>trans</i>-Stilbene in Ionic Liquids Observed with Picosecond Time-resolved Raman Spectroscopy

DOI PDF 3 Citations 18 References
  • Koichi Iwata
    Research Centre for Spectrochemistry, School of Science, The University of Tokyo
  • Kyousuke Yoshida
    Department of Chemistry, School of Science, The University of Tokyo
  • Yuta Takada
    Department of Chemistry, School of Science, The University of Tokyo
  • Hiro-o Hamaguchi
    Department of Chemistry, School of Science, The University of Tokyo

Search this article

Abstract

<jats:title>Abstract</jats:title> <jats:p>Vibrational cooling rates in room temperature ionic liquids were measured with picosecond time-resolved Raman spectroscopy. The 1570-cm−1 Raman band of the first excited singlet (S1) state of trans-stilbene was used as a “Raman thermometer.” The recorded vibrational cooling rates in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (emimTf2N) and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (bmimTf2N) were close to those in ordinary molecular solvents despite a large difference in thermal diffusivity. The result is consistent with the assumption that local structures are formed in the ionic liquids.</jats:p>

Journal

  • Chemistry Letters

    Chemistry Letters 36 (4), 504-505, 2007-03-03

    Oxford University Press (OUP)

Citations (3)*help

See more

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top