Ground state atomic sulfur was generated by 193-nm laser photolysis of CS 2 precursor in Ar bath gas, in the presence of a large excess of NO 2 under pseudo-first-order conditions. Decays of S( 3 P J ) were monitored over 292-656 K and pressures of 14-535 mbar. No pressure dependence was observed, a
Dynamics and kinetics of the S + HO2 reaction: A theoretical study
โ Scribed by M. Y. Ballester; A. J. C. Varandas
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 219 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
Abstract
We report a quasiโclassical trajectory study of the S + HO~2~ reaction using a previously reported global potential energy surface for the ground electronic state of HSO~2~. Zeroโpoint energy leakage is approximately accounted for by using the vibrational energy quantum mechanical threshold method. Calculations are carried out both for specific roโvibrational states of the reactants and thermalized ones, with rate constants being reported as a function of temperature. The results suggest that the title reaction is capture type, with OH and SO showing as the most favorable products. The internal energy distribution of such products and the reaction mechanism are also investigated. ยฉ 2008 Wiley Periodicals, Inc. Int J Chem Kinet 40: 533โ540, 2008
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