Wall deactivation rates for H\*(Z)= 1) J? H\*(u=O) and D\*(v= I ) 2 D2 (v= 0) were measured by probing the vibrationally excited molecules with coherent Anti-Stokes Raman spectroscopy. The probabilities for vibrational relaxation at room tempera-turewerefoundtobey=(3,5&0,6)XlO-'forquartz, (1.2+0.2)x
On the mechanism of heterogeneous relaxation of vibrationally excited nitrogen molecules
β Scribed by V.I. Egorov; Yu.M. Gershenzon; V.B. Rozenshtein; S.Ya. Umanskii
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 347 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The N2 vibrational deactivation probability E in the case of a collision with a glass surface has been measured over the temperature range 282-603Β°K
for different values of pressure. The observed temperature and pressure dependence of e is interpreted in terms of twc different additive mechanisms of the heterogeneous vibrational reLzx3 tion. One of these is connected with the physical and the other with the chemical adsorption of the vibrationalIy excited N2 molecule.
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Theoretical analysis of the time-dependent triplet-triplet absorption spectrum of anrhracene is cvried out in terms of the Huanp-Rhys spectral function which describes the absorption of molecules thermally equilibrated, due to fast intramolecular processes, al some effective tempera!urc r\*(r) depen