Publication Abstracts

Boissoles et al. 1987

Boissoles, J., C. Boulet, D. Robert, and S. Green, 1987: IOS and ECS coupling calculation for the CO-He system: Influence on the vibration-rotation band shapes. J. Chem. Phys., 87, 3436-3446, doi:10.1063/1.452988.

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. Comparisons 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 temperature 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.

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BibTeX Citation

@article{bo05000n,
  author={Boissoles, J. and Boulet, C. and Robert, D. and Green, S.},
  title={IOS and ECS coupling calculation for the CO-He system: Influence on the vibration-rotation band shapes},
  year={1987},
  journal={Journal of Chemical Physics},
  volume={87},
  pages={3436--3446},
  doi={10.1063/1.452988},
}

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RIS Citation

TY  - JOUR
ID  - bo05000n
AU  - Boissoles, J.
AU  - Boulet, C.
AU  - Robert, D.
AU  - Green, S.
PY  - 1987
TI  - IOS and ECS coupling calculation for the CO-He system: Influence on the vibration-rotation band shapes
JA  - J. Chem. Phys.
JO  - Journal of Chemical Physics
VL  - 87
SP  - 3436
EP  - 3446
DO  - 10.1063/1.452988
ER  -

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