Anharmonicity effect on vibrational relaxation in carbon monoxide
β Scribed by A. Joanna Taylor; F.A. Gianturco
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 290 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
A previous mode1 for calculating the cross sections of the vibrational excitation of carbon monoxide by collision with carbon monoxide has been improved to include anharmonicity effects in the vibrational wavefunctions by describing them in terms of Morse oscillators.
It is shown that this leads to further improvement in the agreement between the theoretical and experimental values for the ribrntional relaxation times. The sensitivity of the total cross sections to nnharmonicity is investigated at several collision energies and further lines of approach are suggested.
π SIMILAR VOLUMES
Vibrational relaxation of carbon monoxide bound to a series of metalloporphyrin complexes (M-(coproporphyrinate-I tetraisopropyl ester)(COXpyridine); M = Fe, Ru, Os) was measured using picosecond infrared pump-probe experiments. The vibrational relaxation rates ((1-2.5) Γ 101Β° s-1) increased with in
We discuss the relationship between vibrational population relaxation, loss of phase coharence, and the homogeneously broadened spontaneous poklzed Raman linewidth. We derive a general equation reltmg these quantitres. and show that extension of the simple model (where the coupling to the heat bath