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An Experimental Study of the Gas-Phase Reactions of NO(3) Radicals with a Series of Unsaturated Aldehydes: trans-2-Hexenal, trans-2-Heptenal and trans-2-Octenal.
MedLine Citation:
PMID:  23004348     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Rate constants for the gas-phase reactions of NO3 radical with a series of unsaturated aldehydes, trans-2-hexenal, trans-2-heptenal and trans-2-octenal, have been measured using absolute rate method at 294 ± 3 K and atmospheric pressure. This work was performed to clarify discrepancies found in the literature, and thus led to a clearer view of the effect of the increasing carbon chain length on the reactivity of trans-2-alkenals. The rate constants were determined to be (4.7 ± 1.5) × 10 15, (5.3 ± 1.6) × 10 15 and (5.6 ± 2.3) × 10 15 cm3 molecule-1 s-1 for trans-2-hexenal, trans-2-heptenal and trans-2-octenal, respectively. These results clearly indicate that the carbon chain lengthening of the trans-2-alkenals does not significantly affect the rate constant. In addition, the mechanism for the reaction of NO3 with these unsaturated aldehydes is also investigated. Unsaturated PAN-type compounds which are exclusively formed through the abstraction channel were observed as the main products.
Authors:
Jamila Kerdouci; Benedicte Picquet-Varrault; Régine Durand-Jolibois; Cécile Gaimoz; Jean-François Doussin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-24
Journal Detail:
Title:  The journal of physical chemistry. A     Volume:  -     ISSN:  1520-5215     ISO Abbreviation:  J Phys Chem A     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890903     Medline TA:  J Phys Chem A     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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