Publication Abstracts

Tipping et al. 2005

Tipping, R.H., Q. Ma, C. Boulet, and J.-.M. Hartmann, 2005: Theoretical analysis of the collision-induced electronic absorptions in O2-N2 and O2-CO2 pairs. J. Molec. Struct., 742, 83-86, doi:10.1016/j.molstruc.2004.11.095.

Theoretical calculations are made for the collision-induced electronic absorption in the atmospheric infrared a←X (0,0) and visible b←X (0,0) bands of oxygen in O2-N2 and O2-CO2 pairs. We consider only the long-range quadrupolar induction mechanism and use ab initio values for the quadrupole transition matrix elements that arise from spinorbit mixing. By fitting the experimental value for the a←X (0,0) absorption in O2-N2, we obtain estimates for the isotropic and anisotropic polarizability electronic transition matrix elements of O2. As a check, we then use these results together with other known data to calculate the corresponding absorption for O2-CO2. We find good agreement, considering experimental error and theoretical approximations. We then estimate the corresponding absorption for the b←X (0,0) absorption in O2-N2. We discuss briefly the observed collision-induced absorption by O2-O2 pairs, and conclude that there must be other induction mechanisms involved for this system. Because of the importance of absorption by O2 in the Earth's atmosphere, we conclude that a systematic study, including both additional measurements and theoretical analyses must be carried out before a satisfactory understanding can be attained.

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BibTeX Citation

@article{ti06000k,
  author={Tipping, R. H. and Ma, Q. and Boulet, C. and Hartmann, J.-. M.},
  title={Theoretical analysis of the collision-induced electronic absorptions in O2-N2 and O2-CO2 pairs},
  year={2005},
  journal={J. Molec. Struct.},
  volume={742},
  pages={83--86},
  doi={10.1016/j.molstruc.2004.11.095},
}

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RIS Citation

TY  - JOUR
ID  - ti06000k
AU  - Tipping, R. H.
AU  - Ma, Q.
AU  - Boulet, C.
AU  - Hartmann, J.-. M.
PY  - 2005
TI  - Theoretical analysis of the collision-induced electronic absorptions in O2-N2 and O2-CO2 pairs
JA  - J. Molec. Struct.
VL  - 742
SP  - 83
EP  - 86
DO  - 10.1016/j.molstruc.2004.11.095
ER  -

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