STATE-TO-STATE PHOTODISSOCIATION OF ORIENTED HF-HCl COMPLEXES
STATE-TO-STATE PHOTODISSOCIATION OF ORIENTED HF-HCl COMPLEXES
复制标题
定向 HF-HCl 配合物的状态间光解
DOI：
10.1021/j100037a015
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
R. Miller
中科院分区：
文献类型：
--
作者：
L. Oudejans;R. Miller
得到了HF-HC1二元配合物两种异构体振动预解的光碎片角分布。采用高分辨率f中心激光器对母体络合物进行状态选择激发。为了从碎片的最终态分布中获得完整的数据分配，需要在直流电场中对母分子进行定向，并使用第二探针激光对HF碎片进行状态选择性检测。HF-HC1异构体的解离能为642±2 cm-1。该复合物的解离导致av= 1 HC1片段的产生。两种同位素体（35C1/37C1）的最终态分布是完全不同的，尽管这两种体系的能量学基本相同。对HC1 - hf分布的分析虽然更定性，但表明VV通道被重氯原子动态阻断，导致生成v= 0 HC1。
Photofragment angular distributions havebeen obtained for the vibrational predissociation of both isomers of the HF—HC1 binary complex. State-selective excitation of the parentcomplex is carried out using a highresolution F-center laser. To obtain a complete assignment of the data in terms of final state distributions of the fragments, it was necessary to bothorient the parent molecules in a dc electric field and state selectively detect the HF fragments using a second probe laser. The dissociation energy of the HF-HC1 isomer is determined to be 642±2 cm-1. Dissociation of this complex leads to the production of av= 1 HC1 fragment. The final state distributions for thetwo isotopomers (35C1/37C1) are quite different even though the energetics associated with these two systems are essentially the same. The analysis of the HC1—HF distributions, although more qualitative, suggests that the VV channel is dynamically blocked by the heavy chlorine atom, resulting in the production of v= 0 HC1.