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Three-Body Photodissociation of Thionyl Chloride
Bumaliya Abulimiti1, Qiao-li Hao2, Chen Qin1, Mei Xiang1, Bing Zhang2
1.College of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China;2.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
Abstract:
The ultrafast photodissociation dynamics of thionyl chloride after excitation with a 235 nm pump pulse has been studied using a femtosecond time-resolved mass spectroscopy. The observed parent transient suggests that the excited states initiated by 235 nm are very shortlived, that is, approximately 166 fs. Not only a stepwise three-body dissociation pathway but also a concerted three-body dissociation pathway is observed.
Key words:  Photodissociation  Thionyl chloride  Three-body  Time-resolved study
FundProject:This work was supported by the National Natural Science Foundation of China (No.11564040, No.21763027, No.11204264, No.11464045), the Natural Science Foundation of Xinjiang (No.2017D01B36), "13th Five-Year" Plan for Key Discipline Physics Bidding Project (No.17SDKD0602), Xinjiang Normal University and Science Foundation for Doctorate Research of Xinjiang Normal University (XJNUBS1511, XJNUBS1408), Teaching research and reform program of Xinjiang Normal University(No:SDJG2016C8).
二氯亚砜分子三体解离研究
布玛丽亚·阿布力米提1, 蒿巧利2, 秦晨1, 向梅1, 张冰2
1.新疆师范大学物理与电子工程学院, 乌鲁木齐 830054;2.中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 武汉 430071
摘要:
本文利用飞秒时间分辨的质谱技术,研究了二氯亚砜分子在235 nm泵浦下的超快光解过程.实验记录了母体离子产率随泵浦-探测延迟时间的变化趋势,测得235 nm泵浦下的初始激发态寿命为166 fs.需要注意的是,实验中不仅观察到了二氯亚砜分子逐步解离过程还观察到了协同解离过程.
关键词:  光解离  二氯亚砜  三体解离  时间分辨
DOI:10.1063/1674-0068/31/cjcp1711218
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