IRIS publication 19907703
Gas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment
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TY - JOUR - Kourtchev, I.,Bejan, I.,Sodeau, J. R.,Wenger, J. C. - 2009 - June - Atmospheric Environment - Gas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment - Validated - () - 43 - 20 - 3182 - 3190 - The gas-phase ozonolysis of (E)-beta-farnesene was investigated in a 3.91 m(3) atmospheric simulation chamber at 296 +/- 2 K and relative humidity of around 0.1%. The relative rate method Was used to determine the reaction rate coefficient of (4.01 +/- 0.17) x 10(-16) cm(3) molecule(-1) s(-1), where the indicated errors are two least-squares standard deviations and do not include uncertainties in the rate coefficients for the reference compounds (gamma-terpinene, cis-cyclooctene and 1,5-cyclooctadiene). Gas phase carbonyl products were collected using a denuder sampling technique and analyzed with GC/MS following derivatization with O-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine (PFBHA). The reaction products detected were acetone, 4-oxopentanal, methylglyoxal, 4-methylenehex-5-enal, 6-methylhept-5-en-2-one, and (E)-4-methyl-8-methylenedeca-4,9-dienal. A detailed mechanism for the gas-phase ozonolysis of(E)-beta-farnesene is proposed, which accounts for all of the products observed in this study. The results of this work indicate that the atmospheric reaction of (E)-beta-farnesene with ozone has a lifetime of around 1 h and is another possible source of the ubiquitous carbonyls, acetone, 4-oxopentanal and 6-methylhept-5-en-2-one in the atmosphere. (C) 2009 Elsevier Ltd. All rights reserved. - 1352-2310 - ://000267117100004 DA - 2009/06 ER -
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@article{V19907703, = {Kourtchev, I. and Bejan, I. and Sodeau, J. R. and Wenger, J. C. }, = {2009}, = {June}, = {Atmospheric Environment}, = {Gas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment}, = {Validated}, = {()}, = {43}, = {20}, pages = {3182--3190}, = {{The gas-phase ozonolysis of (E)-beta-farnesene was investigated in a 3.91 m(3) atmospheric simulation chamber at 296 +/- 2 K and relative humidity of around 0.1%. The relative rate method Was used to determine the reaction rate coefficient of (4.01 +/- 0.17) x 10(-16) cm(3) molecule(-1) s(-1), where the indicated errors are two least-squares standard deviations and do not include uncertainties in the rate coefficients for the reference compounds (gamma-terpinene, cis-cyclooctene and 1,5-cyclooctadiene). Gas phase carbonyl products were collected using a denuder sampling technique and analyzed with GC/MS following derivatization with O-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine (PFBHA). The reaction products detected were acetone, 4-oxopentanal, methylglyoxal, 4-methylenehex-5-enal, 6-methylhept-5-en-2-one, and (E)-4-methyl-8-methylenedeca-4,9-dienal. A detailed mechanism for the gas-phase ozonolysis of(E)-beta-farnesene is proposed, which accounts for all of the products observed in this study. The results of this work indicate that the atmospheric reaction of (E)-beta-farnesene with ozone has a lifetime of around 1 h and is another possible source of the ubiquitous carbonyls, acetone, 4-oxopentanal and 6-methylhept-5-en-2-one in the atmosphere. (C) 2009 Elsevier Ltd. All rights reserved.}}, issn = {1352-2310}, = {://000267117100004}, source = {IRIS} }
Data as stored in IRIS
AUTHORS | Kourtchev, I.,Bejan, I.,Sodeau, J. R.,Wenger, J. C. | ||
YEAR | 2009 | ||
MONTH | June | ||
JOURNAL_CODE | Atmospheric Environment | ||
TITLE | Gas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment | ||
STATUS | Validated | ||
TIMES_CITED | () | ||
SEARCH_KEYWORD | |||
VOLUME | 43 | ||
ISSUE | 20 | ||
START_PAGE | 3182 | ||
END_PAGE | 3190 | ||
ABSTRACT | The gas-phase ozonolysis of (E)-beta-farnesene was investigated in a 3.91 m(3) atmospheric simulation chamber at 296 +/- 2 K and relative humidity of around 0.1%. The relative rate method Was used to determine the reaction rate coefficient of (4.01 +/- 0.17) x 10(-16) cm(3) molecule(-1) s(-1), where the indicated errors are two least-squares standard deviations and do not include uncertainties in the rate coefficients for the reference compounds (gamma-terpinene, cis-cyclooctene and 1,5-cyclooctadiene). Gas phase carbonyl products were collected using a denuder sampling technique and analyzed with GC/MS following derivatization with O-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine (PFBHA). The reaction products detected were acetone, 4-oxopentanal, methylglyoxal, 4-methylenehex-5-enal, 6-methylhept-5-en-2-one, and (E)-4-methyl-8-methylenedeca-4,9-dienal. A detailed mechanism for the gas-phase ozonolysis of(E)-beta-farnesene is proposed, which accounts for all of the products observed in this study. The results of this work indicate that the atmospheric reaction of (E)-beta-farnesene with ozone has a lifetime of around 1 h and is another possible source of the ubiquitous carbonyls, acetone, 4-oxopentanal and 6-methylhept-5-en-2-one in the atmosphere. (C) 2009 Elsevier Ltd. All rights reserved. | ||
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ISBN_ISSN | 1352-2310 | ||
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URL | ://000267117100004 | ||
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