ULTRA-LOW TEMPERATURE KINETICS OF NEUTRAL-NEUTRAL REACTIONS - NEW EXPERIMENTAL AND THEORETICAL RESULTS FOR OH-K AND 23-K(HBR BETWEEN 295)

Authors
SIMS IR SMITH IWM CLARY DC BOCHEREL P ROWE BR
Citation
Ir. Sims et al., ULTRA-LOW TEMPERATURE KINETICS OF NEUTRAL-NEUTRAL REACTIONS - NEW EXPERIMENTAL AND THEORETICAL RESULTS FOR OH-K AND 23-K(HBR BETWEEN 295), The Journal of chemical physics, 101(2), 1994, pp. 1748-1751
Citations number
28
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
101
Issue
2
Year of publication
1994
Pages
1748 - 1751
Database
ISI
SICI code
0021-9606(1994)101:2<1748:UTKONR>2.0.ZU;2-K
Abstract
The first determination of the rate of reaction of OH radicals with HB r at temperatures below 249 K is reported. Rate constants measured fro m 295 to 23 K increase monotonically with decrease in temperature and are faster than has previously been thought at the temperatures presen t in the mid and low stratosphere. The observed negative temperature d ependence is well predicted by a simple formula deduced from quantum s cattering calculations employing the rotating bond approximation.