CF3CF=CF2 is a potential source of atmospheric trifluoroacetic acid(CF3C(O)OH).The kinetics of the reaction of the simplest Criegee intermediate(CH2OO)with CF3CF=CF2 was studied by using the OH laser-induced fluoresce...CF3CF=CF2 is a potential source of atmospheric trifluoroacetic acid(CF3C(O)OH).The kinetics of the reaction of the simplest Criegee intermediate(CH2OO)with CF3CF=CF2 was studied by using the OH laser-induced fluorescence method.At 10 torr,the rate co-efficients were measured to be(1.45±0.14)×10^-13,(1.18±0.11)×10^-13,(1.11±0.08)×10^-13,and(1.04±0.08)×10^-13·cm^3·molecule^-1·s^-1 at 283,298,308 and 318 K,respectively.The activation energy of(-1.66±0.21)kcal/mol was derived from the Arrhenius equation.No obvious pressure dependence was observed.展开更多
基金supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDB17000000)the National Natural Science Foundation of China (No.21873098)+2 种基金International Partnership Program of Chinese Academy of Sciences (No.121421KYSB20170012)the Chemical Dynamics Research Center (No.21688102)the Liaoning Revitalization Talents Program (No.XLYC1807248).
文摘CF3CF=CF2 is a potential source of atmospheric trifluoroacetic acid(CF3C(O)OH).The kinetics of the reaction of the simplest Criegee intermediate(CH2OO)with CF3CF=CF2 was studied by using the OH laser-induced fluorescence method.At 10 torr,the rate co-efficients were measured to be(1.45±0.14)×10^-13,(1.18±0.11)×10^-13,(1.11±0.08)×10^-13,and(1.04±0.08)×10^-13·cm^3·molecule^-1·s^-1 at 283,298,308 and 318 K,respectively.The activation energy of(-1.66±0.21)kcal/mol was derived from the Arrhenius equation.No obvious pressure dependence was observed.
