Journal of Chemical Physics
Feedback | Help | Exit
The Journal of Chemical Physics
   
 
 
 
Previous Article
Ultrafast conformation equilibration in triphenyl methane dyes analyzed by time resolved induced photoabsorption
Dual frequency pump–probe induced photoabsorption recovery is studied in two triphenylmethane dyes, malachite green and crystal violet, using femtosecond laser pulses. Comparison of the decays o...
Next Article
Vibrationally state-selected reactions of ammonia ions. II. NH<sup> + </sup><sub>3</sub>(v)+CH4
The effects of vibrational excitation of the ammonia 2 inversion mode on the reaction of NH + 3" align="middle"/>(,v=0 to 9) with methane have been measured in a tandem quadrupole mass spectrometer ov...

IOS and ECS line coupling calculation for the CO–He system: Influence on the vibration–rotation band shapes

J. Chem. Phys. 87, 3436 (1987); doi:10.1063/1.452988

Issue Date: 15 September 1987

You are not logged in to this journal. Log in

J. Boissoles and C. Boulet
Departement de Physique Atomique et Moléculaire, CNRS, UA 1203, Université de Rennes I, Campus de Beaulieu-35042 Rennes Cedex, France

D. Robert
Laboratoire de Physique Moléculaire, CNRS, UA 772, Université de Franche-Comté-25030 Besancon Cedex, France

S. Green
NASA Goddard Space Flight Center, Institute for Space Studies, New York, New York 10025
Line coupling coefficients resulting from rotational excitation of CO perturbed by He are computed within the infinite order sudden approximation (IOSA) and within the energy corrected sudden approximation (ECSA). The influence of this line coupling on the 1–0 CO–He vibration–rotation band shape is then computed for the case of weakly overlapping lines in the 292–78 K temperature range. The IOS and ECS results differ only at 78 K by a weak amount at high frequencies. Comparison with an additive superposition of lorentzian lines shows strong modifications in the troughs between the lines. These calculated modifications are in excellent quantitative agreement with recent experimental data for all the temperatures considered. The applicability of previous approaches to CO–He system, based on either the strong collision model or exponential energy gap law, is also discussed. The Journal of Chemical Physics is copyrighted by The American Institute of Physics.
History: Received 20 November 1986; accepted 18 May 1987
Permalink: http://link.aip.org/link/?JCPSA6/87/3436/1
BUY THIS ARTICLE   (US$28)
Download PDF (1010 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 33.70.Jg
    Molecular spectra and interactions of molecules with photons Intensities and shapes of molecular spectral lines and bands Line and band widths, shapes, and shifts
  • 33.10.Jz
    Molecular spectra and interactions of molecules with photons Calculation of molecular spectra Vibrationrotational analysis
  • 33.20.Ea
    Molecular spectra and interactions of molecules with photons Molecular spectra, grouped by wavelength ranges Infrared spectra
  • YEAR: 1987

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (40)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. M. Baranger, Phys. Rev. 111, 494 (1958).
  2. R. G. Gordon, J. Chem. Phys. 45, 1649 (1966);
    3. 46, 448 (1967).
  3. P. Dion and A. D. May, Can. J. Phys. 51, 36 (1973);
    4. T. Witkowicz and A. D. May, ibid. 54, 575 (1976).
  4. J. Bonamy, L. Bonamy, and D. Robert, J. Chem. Phys. 67, 4441 (1977).
  5. R. J. Hall, J. Verdieck, and E. C. Eckbreth, Opt. Commun. 35, 69 (1980);
    6. R. J. Hall and D. A. Greenhalgh, ibid. 40, 417 (1982).
  6. M. L. Koszykowski, L. A. Rahn, and R. E. Palmer, J. Phys. Chem. (in press) (1986).
  7. J. P. Sala, J. Bonamy, D. Robert, B. Lavorel, G. Millot, and H. Berger, Chem. Phys. 106, 427 (1986);
    8. B. Lavorel, G. Millot, J. Bonamy, and D. Robert, ibid. 106, 427 (1986).
  8. J. Baran, A. Grofcisk, and W. J. Jones, Mol. Phys. 45, 1298 (1984).
  9. M. O. Bulanin, A. Z. Dokuchaev, M. V. Tonkov, and N. N. Filippov, J. Quant. Spectrosc. Radiat. Transfer. 31, 521 (1984).
  10. C. Cousin, R. Le Doucen, C. Boulet, A. Henry, and D. Robert, J. Quant. Spectrosc. Radiat. Transfer 36, 521 (1986).
  11. T. A. Brunner and D. Pritchard, Dynamics of the Excited State, edited by K. P. Lawley (Wiley, New York, 1982), p. 589.
  12. R. Schafer and R. G. Gordon, J. Chem. Phys. 58, 5422 (1973).
  13. R. Goldfman, S. Green, and D. J. Kouri, J. Chem. Phys. 67, 4149 (1977).
  14. S. Green, J. Chem. Phys. 70, 4686 (1979).
  15. S. Green and S. Chapman, Chem. Phys. Lett. 98, 467 (1983).
  16. A. E. de Pristo, S. A. Augustin, R. Ramaswamy, and H. Rabitz, J. Chem. Phys. 71, 850 (1979).
  17. P. W. Rosenkranz, IEEE Trans. Antennas Propag. 23, 498 (1975).
  18. E. W. Smith, J. Chem. Phys. 74, 6658 (1981).
  19. J. P. Bouanich and C. Haeusler, J. Quant. Spectrosc. Radiat. Transfer 12, 695 (1972),
    20. J. P. Bouanich, ibid. 12, 1609 (1972).
  20. R. Goldflam, D. J. Kouri, and S. Green, J. Chem. Phys. 67, 5661 (1977).
  21. S. Green, D. L. Cochrane, and D. G. Truhlar, J. Chem. Phys. 84, 3865 (1986).
  22. A. Ben Reuven, Phys. Rev. 145, 7 (1966).
  23. L. Bonamy, J. Bonamy, and D. Robert, J. Chem. Phys. 67, 4441 (1977).
  24. D. Robert and J. Bonamy, J. Phys. (Paris) 10, 923 (1979).
  25. D. Robert, J. Bonamy, J. P. Sala, G. Levi, and R. Marsault-Herail, Chem. Phys. 99, 303 (1985).
  26. L. D. Thomas, W. P. Kraemer, and G. H. F. Diercksen, Chem. Phys. 51, 131 (1980).
  27. S. Green and L. D. Thomas, J. Chem. Phys. 73, 5391 (1980).
  28. R. Schinke and G. H. F. Diercksen, J. Chem. Phys. 83, 4516 (1985).
  29. S. Green and P. Thaddeus, 205, 766 (1976).
  30. A. Picard-Bersellini, R. Charneau, and Ph. Brechignac, J. Chem. Phys. 78, 5900 (1983).
  31. R. B. Nerf and M. A. Sonnenberg, J. Mol. Spectrosc. 13, 1 (1973).
  32. J. K. Messer and F. C. De Lucia, Phys. Rev. Lett. 53, 2555 (1984).
  33. B. Macke, D. Derozier, and F. Rohart, Chem. Phys. Lett. 123, 9 (1986).
  34. S. Green, J. Chem. Phys. 82, 4548 (1985).
  35. A. Palma and S. Green, J. Chem. Phys. 85, 1333 (1986).
  36. S. Green and S. Chapman, Chem. Phys. Lett. 112, 436 (1984).
  37. S. Green, J. Chem. Phys. 69, 4076 (1978).
  38. De Pristo, J. Chem. Phys. 74, 36 (1981).
  39. M. E. Rose, Elementary Theory of Angular Momentum (Wiley, New York, 1967).
  40. S. Green, Chem. Phys. 40, 1 (1979).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics