caa a22 4500 475823478 CHVBK 20180406123824.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1023/A:1006499008759 doi (NATIONALLICENCE)springer-10.1023/A:1006499008759 Kinetic Studies of OH and O3 Reactions with Allyl and Isopropenyl Acetate [Elektronische Daten] [S. Le Calvé, A. Mellouki, G. Le Bras, J. Treacy, J. Wenger, H. Sidebottom] Rate coefficients have been measured for the gas phasereactions of hydroxyl (OH) radicals and ozone with twounsaturated esters, allyl acetate(CH3C(O)OCH2CH=CH2) and isopropenylacetate (CH3C(O)OC(CH3)=CH2). The OHexperiments were carried out using the pulsed laserphotolysis - laser induced fluorescence technique overthe temperature range 243-372 K and the kinetic dataused to derive the following Arrhenius expressions (inunits of cm3 molecule-1 s-1): allylacetate, k 1 = (2.33 ± 0.27) ×10-12 exp[(732 ± 34)/T]; and isopropenyl acetate,k 2 = (4.52 ± 0.62) × 10-12exp[(809 ± 39)/T]. At 298 K, the rate coefficients obtained (inunits of 10-12 cm3 molecule-1 s-1)are: k 1 = (27.1 ± 3.0) and k 2= (69.6± 9.4). The relative rate technique has been usedto determine rate coefficients for the reaction ofozone with the acetates. Using methyl vinyl ketone asthe reference compound and a value of4.8 × 10-18 cm3 molecule-1s-1 asthe rate coefficient for its reaction with O3,the following rate coefficients were derived at 298 ± 4 K (in units of10-18 cm3molecule-1 s-1): allyl acetate, (2.4 ± 0.7) andisopropenyl acetate (0.7 ± 0.2). Theresults are discussed in terms of structure-activityrelationships and used to derive atmospheric lifetimesfor the acetates. Kluwer Academic Publishers, 2000 OH radicals nationallicence ozone nationallicence rate coefficients nationallicence allyl acetate nationallicence isopropenyl acetate nationallicence Le Calvé S. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut Mellouki A. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut Le Bras G. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut Treacy J. Department of Chemistry, Dublin Institute of Technology, Kevin Steet, Dublin 8, Ireland aut Wenger J. Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland aut Sidebottom H. Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland aut Journal of Atmospheric Chemistry Kluwer Academic Publishers 37/2(2000-10-01), 161-172 0167-7764 37:2<161 2000 37 10874 https://doi.org/10.1023/A:1006499008759 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1006499008759 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Le Calvé S. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut NATIONALLICENCE 700 1- Mellouki A. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut NATIONALLICENCE 700 1- Le Bras G. Laboratoire de Combustion et Systèmes Réactifs, CNRS, 1C, Avenue de la recherche scientifique, 45071, Orléans Cedex 2, France aut NATIONALLICENCE 700 1- Treacy J. Department of Chemistry, Dublin Institute of Technology, Kevin Steet, Dublin 8, Ireland aut NATIONALLICENCE 700 1- Wenger J. Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland aut NATIONALLICENCE 700 1- Sidebottom H. Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland aut NATIONALLICENCE 773 0- Journal of Atmospheric Chemistry Kluwer Academic Publishers 37/2(2000-10-01), 161-172 0167-7764 37:2<161 2000 37 10874 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer