FTIR and computational studies of gas-phase hydrogen atom abstraction kinetics by t-butoxy radical
作者:Shuping Li、Wai Yip Fan
DOI:10.1016/j.cplett.2006.06.100
日期:2006.8
for the hydrogen atom abstraction reactions of several substrates including halogenated organic compounds and amines by t-butoxy radical generated from the uv photolysis of t-butyl nitrite in the gas phase. Arrhenius parameters for selected reactions have been measured in the temperature range 299–318 K. Transition states and activation barriers for such reactions have been computed with the help of
通过使用傅立叶变换红外(FTIR)吸收光谱法,已确定了包括卤代有机化合物和氢氧烷在内的几种底物的氢原子提取反应的速率系数在10 -16至10 -14 cm 3 分子-1 s -1范围内。通过叔丁氧基自由基在气相中亚硝酸叔丁酯的紫外光解而生成胺。在299–318 K的温度范围内测量了所选反应的Arrhenius参数。借助Gaussian 03软件计算了此类反应的过渡态和激活势垒,发现与实验值非常吻合。