Experimental study of the dynamics of the H+D2 → HD+D reaction at collision energies of 0.55 and 1.30 eV
Experimental study of the dynamics of the H+D2 → HD+D reaction at collision energies of 0.55 and 1.30 eV
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0.55 和 1.30 eV 碰撞能量下 H+D2 → HD+D 反应动力学的实验研究
DOI：
10.1063/1.447762
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
J. Valentini
中科院分区：
文献类型：
--
作者：
D. Gerrity;J. Valentini
本文报道了H+D2 → HD+D反应初生HD产物量子态分布的实验测量。脉冲激光光解HI/D2混合气体产生氢原子，H+D2碰撞能分别为0.55 eV和1.30 eV。纳秒时间分辨相干反斯托克斯拉曼散射(CARS)光谱被用来记录在近乎单碰撞条件下HD反应产物的转动和振动分辨光谱。分析光谱以确定新生的、单碰撞HD产物的量子态分布。这些分布与E.E.Marineo、C.T.Rettner和R.N.Zare的相关实验结果以及N.C.Blais和D.G.Truhlar最近的准经典轨道计算结果进行了比较。我们的结果与Marineo等人的结果在定性上是一致的，但也有一些定量上的差异。轨道计算得到的HD量子态分布与我们已有的非常接近。
We report here experimental measurement of the nascent HD product quantum state distributions for the H+D2 → HD+D reaction. Pulsed laser photolysis of HI in an HI/D2 gas mixture produces hydrogen atoms giving H+D2 collision energies of 0.55 and 1.30 eV. Nanosecond‐time‐resolved coherent anti‐Stokes Raman scattering (CARS) spectroscopy is used to record rotationally and vibrationally resolved spectra of the HD reaction product under nearly single‐collision conditions. The spectra are analyzed to determine the nascent, single‐collision HD product quantum state distributions. These distributions are compared to the results of related experiments by E. E. Marinero, C. T. Rettner, and R. N. Zare and to the results of recent quasiclassical trajectory calculations of N. C. Blais and D. G. Truhlar. Our results are in qualitative agreement with those of Marinero et al., but there are some quantitative differences. The trajectory calculations yield HD quantum state distributions which are very close to those we hav...