论文部分内容阅读
利用激光光解C2H3Br产生C2H3自由基,在气相298K,总压2.66×103Pa的条件下,研究C2H3与NO2的反应,用激光光解-激光诱导荧光(LP-LIF)检测中间产物OH自由基的相对浓度随着反应时间的变化关系,报导了双分子反应C2H3+NO2的速率常数kC2H3+NO2=(1.8±0.05)×10-11cm3·molec.-1·s-1,同时也得到OH+NO2反应的速率常数kOH+NO2=(2.1±0.15)×10-12cm3·molec.-1·s-1.
The C2H3 radical was produced by laser photolysis of C2H3Br. The reaction of C2H3 with NO2 was studied under the conditions of gas phase of 298K and total pressure of 2.66 × 103Pa. The free radical of OH radical was detected by laser photolysis-laser induced fluorescence (LP-LIF) The relative concentration as a function of reaction time reported the rate constant of C2H3 + NO2 = (1.8 ± 0.05) × 10-11cm3 · molec.-1 · s-1 for bimolecular reaction and OH + NO2 The reaction rate constant kOH + NO2 = (2.1 ± 0.15) × 10-12cm3 · molec.-1 · s-1.