TY - JOUR
T1 - The atmospheric chemistry of the unsaturated aldehydes, methacrolein, acrolein, and crotonaldehyde
AU - Orlando, John J.
AU - Tyndall, Geoffrey S.
AU - Bertman, Steven B.
AU - Chen, Wangchun
AU - Burkholder, James B.
PY - 2002
Y1 - 2002
N2 - Unsaturated aldehydes (methacrolein, acrolein, crotonaldehyde) are present in the atmosphere as the result of the oxidation of 1,3-dienes, or due to direct emissions from anthropogenic sources. As an important first-generation product of isoprene oxidation, the tropospheric chemistry of methacrolein is well characterized. The dominant pathway for its removal is reaction with OH, which occurs with nearly equally probability via an addition and an abstraction pathway. Among the products of the abstraction reaction is an unsaturated PAN-analog, peroxymethacrylic nitric anhydride (MPAN). Data on the rate coefficient for reaction of OH with MPAN and the mechanism for the reaction of OH with acrolein and crotonaldehdye were presented. About 30% of the OH/acrolein reaction occurred via addition to the C=C double bond, while this pathway accounts for about 50% of the OH/crotonaldehyde reaction. This is an abstract of a paper presented at the 223rd ACS National Meeting (Orlando, FL 4/7-11/2002).
AB - Unsaturated aldehydes (methacrolein, acrolein, crotonaldehyde) are present in the atmosphere as the result of the oxidation of 1,3-dienes, or due to direct emissions from anthropogenic sources. As an important first-generation product of isoprene oxidation, the tropospheric chemistry of methacrolein is well characterized. The dominant pathway for its removal is reaction with OH, which occurs with nearly equally probability via an addition and an abstraction pathway. Among the products of the abstraction reaction is an unsaturated PAN-analog, peroxymethacrylic nitric anhydride (MPAN). Data on the rate coefficient for reaction of OH with MPAN and the mechanism for the reaction of OH with acrolein and crotonaldehdye were presented. About 30% of the OH/acrolein reaction occurred via addition to the C=C double bond, while this pathway accounts for about 50% of the OH/crotonaldehyde reaction. This is an abstract of a paper presented at the 223rd ACS National Meeting (Orlando, FL 4/7-11/2002).
UR - https://www.scopus.com/pages/publications/23844491691
M3 - Conference article
AN - SCOPUS:23844491691
SN - 0093-3066
VL - 42
SP - 665
EP - 666
JO - ACS Division of Environmental Chemistry, Preprints
JF - ACS Division of Environmental Chemistry, Preprints
IS - 1
T2 - 223rd ACS National Meeting
Y2 - 7 April 2002 through 11 April 2002
ER -