FTIR gas-phase kinetic study of the reactions of Cl atoms with (CH3)2C=CHC(O)H and CH3CH=CHC(O)OCH3

MARÍA B. BLANCO , IAN BARNES , MARIANO A. TERUEL *

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2010 vol. 488 p. 135 - 135

elative rate coefficients (in cm3 molecule1 s1) for the gas-phase reactions of OH radicals and Cl atoms with diethyl sulfide (DES) and ethyl methyl sulfide (EMS) have been determined at 298 K and atmospheric pressure using long path in situ FTIR analysis: kðOH þ DESÞ ¼ ð1:65 0:71Þ 1011; kðCl þ DESÞ ¼ ð3:14 0:89Þ 1010; kðOH þ EMSÞ ¼ ð1:11 0:29Þ 1011; kðCl þ EMSÞ ¼ ð3:06 0:42Þ 1010: The rate coefficients did not show any dependence on the oxygen partial pressure and are compared with previous determinations. Reactivity trends and atmospheric implications are discussed.