Energy transfer in collisions of highly vibrationally excited tetrahedral molecules

Model trajectory calculations of the energy transfer processes in collisions of Ar with highly vibrationally excited CH 4, CD 4, SiH 4 and CF 4 are performed. Special attention is payed to the calculation of the energy transferred to active (vibrational) degrees of freedom. The results support the d...

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Bibliographic Details
Published in:Chemical physics 1984-01, Vol.88 (3), p.365-373
Main Authors: Grinchak, M.B., Levitsky, A.A., Polak, L.S., Umanskii, S.Ya
Format: Article
Language:English
Subjects:
Atomic and molecular collision processes and interactions
Atomic and molecular physics
Exact sciences and technology
Physics
Scattering of atoms, molecules and ions
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Summary:Model trajectory calculations of the energy transfer processes in collisions of Ar with highly vibrationally excited CH 4, CD 4, SiH 4 and CF 4 are performed. Special attention is payed to the calculation of the energy transferred to active (vibrational) degrees of freedom. The results support the diffusion model of excitation-dissociation and give the low pressure collision efficiency β c which qualitatively agrees with experiment in magnitude and temperature dependence.
ISSN:0301-0104
DOI:10.1016/0301-0104(84)87003-2