【作者】 吴国荣； 杨家岳； 张冬； 陈震； 姜波； 戴东旭； 张东辉； 杨学明；

【Author】 Guorong Wu;Jiayue Yang;Dong Zhang;Zhen Chen;Bo Jiang;Dongxu Dai;Donghui Zhang;Xueming Yang;State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics;

【机构】 大连化学物理研究所分子反应动力学国家重点实验室；

【摘要】 结合交叉分子束和时间切片离子速度成像技术,我们详细地研究了振动激发态的基元化学反应:F+CHD₃（v₁=1）。[1,2]通过精确测量分子束中振动激发态CHD₃（v₁=1）反应物的比例,我们定量地研究了CH键伸缩振动激发对于该反应动力学和反应性的影响。在高碰撞能下（9.0kcal/mol）,我们研究了CH键伸缩振动激发对于该反应的两个反应通道（HF+CD₃和DF+CHD₂）的反应性,产物内能态分布和角分布的影响。同时我们还详细研究了CH键伸缩振动激发对于HF+CD₃反应通道反应性的影响随碰撞能的变化。在该报告中,我们将详细讨论我们的研究结果。更多还原

【Abstract】 The vibrationally excited reaction of F + CHD₃（v₁=1） is investigated using the crossed-beams and time-sliced velocity map imaging techniques.Detailed and quantitative information of the CH stretching excitation effects on the dynamics of the title reaction is extracted with the help of an accurate determination of the fraction of the excited CHD₃ reagent in the crossed-beam region.At a high collision energy of 9.0 kcal/mol,the CH stretching excitation effects on the reactivities,internal state distributions and angular distribution of products are studied carefully for both reaction channels:F+CHD₃（v₁=1）→HF+CD₃ and F + CHD₃（v₁=1） →HF+CHD₂.The collision energy dependence of the relative reactivity of the vibrationally excited reaction over the ground-state one is also studied for the HF + CD₃ channel.In this talk,a detailed discussion on the experimental results will be presented.更多还原