Document Detail


Atmospheric chemistry of BrO radicals: kinetics of the reaction with C2H5O2 radicals at 233-333 K.
MedLine Citation:
PMID:  19722512     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Cavity ring-down spectroscopy was used to study the title reaction in 50-200 Torr of O2 diluent at 233-333 K. There was no discernible effect of total pressure, and a rate constant of k(BrO + C2H5O2) = (3.8 +/- 1.7) x 10(-12) cm3 molecule(-1) s(-1) was determined at 293 K in 150 Torr total pressure of O2 diluent. The addition of 1.4 x 10(17) molecules cm(-3) of H2O vapor had no measurable impact on k(BrO + C2H5O2) at 293 K and 150 Torr. The rate constant exhibited a negative temperature dependence and was described by k(BrO + C2H5O2) = 6.5 x 10(-13) exp((505 +/- 570)/T) cm3 molecule(-1) s(-1). Results are discussed with respect to the atmospheric chemistry of BrO radicals.
Authors:
Yosuke Sakamoto; Daisuke Yamano; Tomoki Nakayama; Satoshi Hashimoto; Masahiro Kawasaki; Timothy J Wallington; Shun Miyano; Kenichi Tonokura; Kenshi Takahashi
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The journal of physical chemistry. A     Volume:  113     ISSN:  1520-5215     ISO Abbreviation:  J Phys Chem A     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-09-17     Completed Date:  2009-12-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890903     Medline TA:  J Phys Chem A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  10231-7     Citation Subset:  -    
Affiliation:
Department of Molecular Engineering, Kyoto University, Kyoto 615-8510, Japan.
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