Kinetics of the reactions of Cl atoms with CF3C(O)OCH3, CF3C(O)OCH2CH3, CF2HC(O)OCH3 in the temperature range of 287–313 K and 1 atm

Abstract

Rate coefficients of the reactions of Cl atoms with CF3C(O)OCH3 (k1), CF3C(O)OCH2CH3 (k2) and CF2HC(O)OCH3 (k3) have been measured for the first time in the temperature range of 287–313K and 1atm.Temperature dependencies of k are described by the Arrhenius expressions: k1=(5±2)×10−12 exp[−(1216±72)/T] (cm3molecule−1s−1), k2=(539±164)×10−12 exp[−(1637±94)/T] (cm3molecule−1s−1) and k3=(20±9)×10−12 exp[−(1368±82)/T] (cm3molecule−1s−1). The kinetic data are compared with previous theoretical calculations and a correlation between kCl and EHOMO of the halogenated VOC is presented.