Advertisement

Far Infrared Absorption Spectra in Gaseous Methane from 138 to 296 K

  • Paolo Codastefano
  • Paolo Dore
  • Luca Nencini
Part of the NATO ASI series book series (volume 127)

Abstract

The rototranslational collision-induced absorption spectrum of gaseous CH4 has been measured from 40 to 600 cm-l at five different temperatures, from 138 to 296 K. Assuming that octopolar and hexa-decapolar induction mechanisms contribute to the absorption, we have derived the octopole and hexadecapole electric multipoles from the analysis of the spectral moments α and γ. We discuss the differences between our values and previous ones and we give an easy temperature interpolation of the moments of the collision-induced rototranslational methane spectra.

Keywords

Spectral Shape Gaseous Methane Multipole Moment Induction Mechanism Lennard Jones 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Birnbaum, G., 1975, J. Chem. Phys., 62: 59MathSciNetCrossRefGoogle Scholar
  2. Birnbaum, G., and Cohen, E. R., 1975, J. Chem. Phys., 62: 3807CrossRefGoogle Scholar
  3. Birnbaum, G., Frommhold, L., Nencini, L., Sutter, H., 1983, Chem. Phys. Lett., 100: 292CrossRefGoogle Scholar
  4. Cohen, E. R., and Birnbaum, G., 1977, J. Chem. Phys., 66: 2443CrossRefGoogle Scholar
  5. Courtin, R., 1982, Icarus, 51: 446CrossRefGoogle Scholar
  6. Fox, K., 1972, Phys. Rev., A6: 907CrossRefGoogle Scholar
  7. Fox, K., and Ozier, I., 1971, Astrophys. Jour., 166: L95CrossRefGoogle Scholar
  8. Goodwin, R. D., 1971, “Tables of provisional values of thermodynamic function for Methane”, Nat. Bur. Stand. Rep., 10715Google Scholar
  9. Gray, C. G., 1971, J. Phys., B4: 1661Google Scholar
  10. Hanley, H. J., and Klein, M., 1972, J. Chem. Phys., 76: 1743CrossRefGoogle Scholar
  11. Hartye, R. W., Gray, C. G., Poll, J. D., Miller, M. S., 1975, Mol. Phys., 29: 825CrossRefGoogle Scholar
  12. Kihara, T., 1953, Rev. Mod. Phys., 25: 381Google Scholar
  13. Ozier, I., 1971; Phys. Rev. Lett., 27: 1329CrossRefGoogle Scholar
  14. Urbianak, J. L., Reesor, G. E., and Dagg, I. R., 1976, Can. J. Phys., 54: 1606CrossRefGoogle Scholar
  15. Watson, J. K. G., 1971, J. Mol. Spectrosc., 40: 536CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Paolo Codastefano
    • 1
  • Paolo Dore
    • 1
  • Luca Nencini
    • 1
  1. 1.Dipartimento di FisicaUniversità di Roma “La Sapienza”RomaItaly

Personalised recommendations