The exchange reaction H2 (ν = 1) + H = H + H2
✍ Scribed by V.I. Osherov; V.G. Ushakov; L.A. Lomakin
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 166 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The classical trajectory method is applied to calculate the total cross sectio.1 for the exchange reaction Hz(u = 1) + H = H + Hz_ The vibrational excitation is shown to influence efficiently the tbresb~ld value. Partial reaction rate-constants calculated on the basis of the cross sections obtained are in good agreement with those measured in H-maser experiments.
📜 SIMILAR VOLUMES
The rate constant for the reaction between OH and vibrationally excited H2, OH + H 2 (v = 1) ~ H20 + H, has been measured directly at 298 K. kol is found to be (7.5 -+ 3) X 10 -13 cma/molecule s, corresponding to a vibrational rate enhancement ofkol/koo = (1.2 -+ 0.4) X 102.
## Anestimateoftherateconstant forthevibration-to-vibrationenergy transferprocess2Hz(v = I)-H2(~ = O)+ Hz& = 2) is made by analyzing the dependence of the effective rate of relaxation on the degee of laser excitation. At 82 K it is (6.3 f 2.1) X 1O-'6 cm3 molecule-t s-~.
Scattering matrix elements for the collinear Hz(c')+H---,H+Hz(v') reaction are obtained using a recently developed timedependent approach to scattering. The correlation function between reactant channel wave packet and product channel wave packet is used to determine the S-matrix elements. The time