Rotational Relaxation of Solute Molecules in Dense Noble Gases

  • Daan Frenkel
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 35)


Broadening of the pure rotational transitions of a dissolved molecule cannot occur if this molecule is embedded in a medium that is always perfectly isotropic. The aim of this seminar is to indicate that there is a relation between rotational linebroadening and the anisotropy of local density fluctuations around the rotating molecule. It is in fact possible to derive an expression which quantitatively relates rotational linewidths to certain 4-point density correlation functions. Rotational linewidth measurements may therefore be used to obtain information about higher order density correlation functions. Most of the topics mentioned in this seminar have been discussed in a number of publications (1, 2,3), to which the reader is referred for more details.


Correlation Function Probe Molecule Solute Molecule Intermolecular Potential Rotational Relaxation 
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  1. 1.
    J. van der Elsken, D. Frenkel, Faraday discussions of the Chemical Society, No.11, 125 (1977)Google Scholar
  2. 2.
    D. Frenkel, Thesis, Amsterdam 1977.Google Scholar
  3. 3.
    D. Frenkel, J. van der Elsken, J.Chem.Phys., to be published.Google Scholar
  4. 4.
    see Dr. Rahmans’ lecture notes. (this volume).Google Scholar
  5. 5.
    D. Frenkel, J. van der Elsken, Chem.Phys.Lett. 40, 14 (1976).ADSCrossRefGoogle Scholar
  6. 6.
    D. Frenkel, D.J. Gravesteijn, J. van der Elsken, Chem.Phys.Lett. 40, 9 (1976).ADSCrossRefGoogle Scholar
  7. 7.
    M.J. Stephen, Phys.Rev. 187, 279 (1969).ADSCrossRefGoogle Scholar
  8. 8.
    see Frank Pinski’s contribution. (this volume).Google Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Daan Frenkel
    • 1
  1. 1.Department of ChemistryUniversity of CaliforniaLos AngelesUSA

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