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Title: Direct kinetics study of the reaction of peroxyacetyl radical with NO between 218 and 370 K

Abstract

The rate coefficient of the CH{sub 3}C(O)O{sub 2} + NO gas-phase reaction was measured over the temperature range of 218--370 K and total pressure of 2--5 Torr, using chemical ionization mass spectrometry detection of the CH{sub 3}C(O)O{sub 2} radical. The temperature-dependent expression for the rate coefficient was determined to be {kappa}(T) = (6.0 {+-} 1.1) x 10{sup {minus}12} exp{l{underscore}brace}(320 {+-} 40)/T{r{underscore}brace} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}, and a 298 K rate constant {kappa}{sub 298} = (1.8 {+-} 0.3) x 10{sup {minus}11} cm{sup 3} molecule{sup {minus}1} was found. These results quell some of the ambiguity presented by previous studies of this reaction and validate the recommended value to be used in tropospheric chemistry models.

Authors:
; ;
Publication Date:
Research Org.:
Weizmann Inst., Rehovot (IL)
OSTI Identifier:
20000062
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory
Additional Journal Information:
Journal Volume: 103; Journal Issue: 34; Other Information: PBD: 26 Aug 1999; Journal ID: ISSN 1089-5639
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ATMOSPHERIC CHEMISTRY; PEROXY RADICALS; NITRIC OXIDE; PEROXYACETYL NITRATE; PHOTOCHEMISTRY; NITROGEN DIOXIDE

Citation Formats

Moise, T., Denzer, W., and Rudich, Y. Direct kinetics study of the reaction of peroxyacetyl radical with NO between 218 and 370 K. United States: N. p., 1999. Web. doi:10.1021/jp990876w.
Moise, T., Denzer, W., & Rudich, Y. Direct kinetics study of the reaction of peroxyacetyl radical with NO between 218 and 370 K. United States. doi:10.1021/jp990876w.
Moise, T., Denzer, W., and Rudich, Y. Thu . "Direct kinetics study of the reaction of peroxyacetyl radical with NO between 218 and 370 K". United States. doi:10.1021/jp990876w.
@article{osti_20000062,
title = {Direct kinetics study of the reaction of peroxyacetyl radical with NO between 218 and 370 K},
author = {Moise, T. and Denzer, W. and Rudich, Y.},
abstractNote = {The rate coefficient of the CH{sub 3}C(O)O{sub 2} + NO gas-phase reaction was measured over the temperature range of 218--370 K and total pressure of 2--5 Torr, using chemical ionization mass spectrometry detection of the CH{sub 3}C(O)O{sub 2} radical. The temperature-dependent expression for the rate coefficient was determined to be {kappa}(T) = (6.0 {+-} 1.1) x 10{sup {minus}12} exp{l{underscore}brace}(320 {+-} 40)/T{r{underscore}brace} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}, and a 298 K rate constant {kappa}{sub 298} = (1.8 {+-} 0.3) x 10{sup {minus}11} cm{sup 3} molecule{sup {minus}1} was found. These results quell some of the ambiguity presented by previous studies of this reaction and validate the recommended value to be used in tropospheric chemistry models.},
doi = {10.1021/jp990876w},
journal = {Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory},
issn = {1089-5639},
number = 34,
volume = 103,
place = {United States},
year = {1999},
month = {8}
}