Gas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment

Typeset version

 

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  - 
@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}
}
AUTHORSKourtchev, I.,Bejan, I.,Sodeau, J. R.,Wenger, J. C.
YEAR2009
MONTHJune
JOURNAL_CODEAtmospheric Environment
TITLEGas-phase reaction of (E)-beta-farnesene with ozone: Rate coefficient and carbonyl products. Atmospheric Environment
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME43
ISSUE20
START_PAGE3182
END_PAGE3190
ABSTRACTThe 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.
PUBLISHER_LOCATION
ISBN_ISSN1352-2310
EDITION
URL://000267117100004
DOI_LINK
FUNDING_BODY
GRANT_DETAILS