On the problem of detailed balance and model lineshapes in collision-induced rotovibrational bands: H < inf> 2 -h < inf> 2 and h < inf> 2 -he
Document Type
Article
Publication Date
1-1-1991
Abstract
When account is taken of the vibrational dependence of the potential function, the usual condition of detailed balance taken with respect to the vibrational-rotational frequencies does not apply, and model spectral functions satisfying this condition are inaccurate. A model correlation function is derived that deals with the case of vibration-dependent potentials. The parameters of the model are computed from relations involving the spectral moments. This model is shown to give spectral shapes, for a number of examples involving the fundamental and first overtone bands of H2-He and H2-H2at room temperature and 1000K, in excellent agreement with spectra calculated quantum mechanically from first principles. The model is useful for predicting the collision-induced vibrational spectra for these and other systems for which the vibration-dependent induced dipole and potential are known. © 1991 Taylor & Francis Group, LLC.
Publication Title
Molecular Physics
Recommended Citation
Birnbaum, G.,
&
Borysow, A.
(1991).
On the problem of detailed balance and model lineshapes in collision-induced rotovibrational bands: H < inf> 2 -h < inf> 2 and h < inf> 2 -he.
Molecular Physics,
73(1), 57-68.
http://doi.org/10.1080/00268979100101051
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9113