Relocking of intrinsic angular momenta in collisions of diatoms with ions: Capture of H-2(j=0,1) by H-2(+)
2016 | journal article. A publication of Göttingen
Jump to: Cite & Linked | Documents & Media | Details | Version history
Cite this publication
Relocking of intrinsic angular momenta in collisions of diatoms with ions: Capture of H-2(j=0,1) by H-2(+)
Dashevskaya, E. I.; Litvin, I.; Nikitin, E. E. & Troe, J. (2016)
The Journal of Chemical Physics, 145(24) art. 244315. DOI: https://doi.org/10.1063/1.4972129
Documents & Media
Details
- Authors
- Dashevskaya, Elena I.; Litvin, Ilya; Nikitin, E. E.; Troe, Juergen
- Abstract
- Rate coefficients for capture of H-2(j = 0,1) by H-2(+) are calculated in perturbed rotor approximation, i.e., at collision energies considerably lower than Bhc (where B denotes the rotational constant of H2). The results are compared with the results from an axially nonadiabatic channel (ANC) approach, the latter providing a very good approximation from the low-temperature Bethe-Wigner to the high temperature Langevin limit. The classical ANC approximation performs satisfactorily at temperatures above 0.1 K. At 0.1 K, the rate coefficient for j = 1 is about 25% higher than that for j = 0 while the latter is close to the Langevin rate coefficient. The Bethe-Wigner limit of the rate coefficient for j = 1 is about twice that for j = 0. The analysis of the relocking of the intrinsic angular momentum of H-2 during the course of the collision illustrates the significance of relocking in capture dynamics in general. Published by AIP Publishing.
- Issue Date
- 2016
- Status
- published
- Publisher
- Amer Inst Physics
- Journal
- The Journal of Chemical Physics
- ISSN
- 1089-7690; 0021-9606