Advertisement

1988–89: The Year of OH-Ar

  • Marsha I. Lester
Part of the NATO ASI Series book series (NSSB, volume 227)

Abstract

Fluorescence excitation spectra of OH-Ar complexes are observed in the vicinity of several OH A 2+2П3/2 transitions. Intermolecular potentials derived from these spectra illustrate the dramatic change in the OH-Ar potential upon electronic excitation of the OH moiety. The OH (center-of-mass) to Ar distance is substantially reduced and Ar becomes much more tightly bound to OH. The differences in the OH-Ar potentials are also reflected in the rate of vibrational predissociation, which is at least a thousand times faster in the excited electronic state. Much smaller changes in the potentials are found upon vibrational excitation of OH, as shown in the ground electronic state by vibrational overtone spectroscopy.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. J. Goodman and L.E. Brus, J. Chem. Phys. 67:4858 (1977).ADSCrossRefGoogle Scholar
  2. R.K. Lengel and D.R. Crosley, J. Chem. Phys. 68:5309 (1978).ADSCrossRefGoogle Scholar
  3. 3.
    D.R. Crosley, J. Phys. Chem. 93:6273 (1989) and references cited therein.CrossRefGoogle Scholar
  4. M.T. Berry, M.R. Brustein, J.R. Adamo, and M.I. Lester, J. Phys. Chem. 92:5551 (1988).CrossRefGoogle Scholar
  5. M.T. Berry, M.R. Brustein, and M.I. Lester, Chem. Phys. Lett. 153:17 (1988).ADSCrossRefGoogle Scholar
  6. 6.
    K.M. Beck, M.T. Berry, M.R. Brustein, and M.I. Lester, Chem. Phys. Lett. in press.Google Scholar
  7. M.T. Berry, M.R. Brustein, and M.I. Lester, J. Chem. Phys. 90:5878 (1989).ADSCrossRefGoogle Scholar
  8. 8.
    M.T. Berry, M.R. Brustein, and M.I. Lester, to be published.Google Scholar
  9. W.M. Fawzy and M.C. Heaven, J. Chem. Phys. 89:7030 (1988).ADSCrossRefGoogle Scholar
  10. 10.
    A.D. Esposti and H.-J. Werner, to be published.Google Scholar
  11. 11.
    C. Chakravarty and D.C. Clary, to be published.Google Scholar
  12. A. Jacobs, K. Kleinermanns, H. Kuge, and J. Wolfrum, J. Chem. Phys. 79:3162 (1983).ADSCrossRefGoogle Scholar
  13. K.J. Rensberger, J.B. Jeffries, and D.R. Crosley, J. Chem. Phys. 90:2174 (1989).ADSCrossRefGoogle Scholar
  14. 14.
    Z.S. Huang, K.W. Jucks, and R.E. Miller, J. Chem. Phys. 85:6905 (1986); J.M. Hutson, J. Chem. Phys. 81:2357 (1984); G.T. Fraser and A.S. Pine, J. Chem. Phys. 85:2502 (1986) and references cited therein.Google Scholar
  15. 15.
    J.M. Hutson and B.J. Howard, Mol. Phys. 45:769 (1982); ibid.,45:791 (1982); J.M. Hutson, J. Chem. Phys. 89:4550 (1988) and references cited_therein.Google Scholar
  16. 16.
    W.M. Fawzy and M.C. Heaven, to be published.Google Scholar
  17. 17.
    J.L. Lemaire, W.-Ü L. Tchang-Brillet, N. Shafizadeh, J. Rostas, and F. Rostas, to be published.Google Scholar

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Marsha I. Lester
    • 1
  1. 1.Department of ChemistryUniversity of PennsylvaniaPhiladelphiaUSA

Personalised recommendations