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Kinetics and Mechanisms for the Reactions of Ozone with Unsaturated Oxygenated Compounds
Author(s) -
Al Mulla Ismael,
Viera Lisa,
Morris Rebecca,
Sidebottom Howard,
Treacy Jack,
Mellouki Abdelwahid
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000404
Subject(s) - chemistry , ozone , decomposition , reactivity (psychology) , ozonolysis , kinetics , double bond , reaction rate constant , product distribution , reaction rate , substituent , computational chemistry , organic chemistry , photochemistry , reaction mechanism , atmospheric chemistry , catalysis , medicine , physics , alternative medicine , pathology , quantum mechanics
Rate coefficients for the reaction of ozone with a series of unsaturated oxygenated compounds are determined in air at atmospheric pressure and (298±3) K. Rate data are obtained using both relative and absolute rate techniques, and the measured rate coefficients are found to be in good agreement. The results show that the reactivity of the compounds with respect to addition of ozone to the double bond is a function of the nature of the oxygenated substituent. Product distribution studies on the reactions provide information on the decomposition pathways for the primary ozonides, and on the effect of the oxygenated group on the relative importance of the degradation pathways. The results are discussed in terms of their importance in the atmospheric oxidation of unsaturated oxygenated compounds.