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Observation of the Carbon Elimination Channel in Vacuum Ultraviolet Photodissociation of OCS

文献类型：期刊论文

作者Chen, Wentao1,2; Zhang, Liang1,2; Yuan, Daofu1,2; Chang, Yao1,2,3; Yu, Shengrui4; Wang, Siwen1,2; Wang, Tao5; Jiang, Bin1,2; Yuan, Kaijun3; Yang, Xueming3,5
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
出版日期2019-09-05
卷号10期号:17页码:4783-4787
ISSN号1948-7185
DOI10.1021/acs.jpclett.9b01811
通讯作者Jiang, Bin(bjiangch@ustc.edu.cn) ; Yuan, Kaijun(kjyuan@dicp.ac.cn) ; Wang, Xingan(xawang@ustc.edu.cn)
英文摘要The textbook mechanism for OCS photodissociation mainly involves the CO + S or CS + O product channel via a single bond fission. However, a third dissociation channel concerning the cleavage of both C-S and C-O bonds yielding SO + C products, though thermodynamically allowed, has never been verified experimentally to date. By using a tunable vacuum ultraviolet laser light and time-sliced velocity map ion imaging technique, we have clearly observed the SO(X-3 Sigma(-)) + C(P-3(j=0)) products as the vacuum ultraviolet laser photon energy gradually exceeds its thermodynamic threshold. The corresponding SO(X-3 Sigma(-)) coproducts are highly vibrationally excited and show varying angular distributions from isotropic to anisotropic as the excitation photon energy increases. Theoretical analysis suggests that a fast nonadiabatic pathway plays a dominant role in the formation of the anisotropic SO products. That isotropic products arise as the excitation photon energies approach the thermodynamic threshold can be reasonably by the "roaming mechanism".
WOS关键词NONADIABATIC BENDING DISSOCIATION ; TO-STATE PHOTODISSOCIATION ; NITROUS-OXIDE ; DYNAMICS ; SULFIDE ; SULFUR ; PATH ; NM
资助项目National Key R&D Program of China[2016YFF0200500] ; National Key R&D Program of China[2017YFA0303500] ; National Natural Science Foundation of China[21473173] ; National Natural Science Foundation of China[21590802] ; National Natural Science Foundation of China[21773213] ; National Natural Science Foundation of China[21722306] ; National Natural Science Foundation of China[21673232] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000] ; Fundamental Research Funds for the Central Universities ; Anhui Initiative in Quantum Information Technologies
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000484884300003
出版者AMER CHEMICAL SOC
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Anhui Initiative in Quantum Information Technologies ; Anhui Initiative in Quantum Information Technologies ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Anhui Initiative in Quantum Information Technologies ; Anhui Initiative in Quantum Information Technologies ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Anhui Initiative in Quantum Information Technologies ; Anhui Initiative in Quantum Information Technologies ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Anhui Initiative in Quantum Information Technologies ; Anhui Initiative in Quantum Information Technologies
源URL[http://cas-ir.dicp.ac.cn/handle/321008/173035]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Jiang, Bin; Yuan, Kaijun; Wang, Xingan
作者单位1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
4.Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou 311231, Zhejiang, Peoples R China
5.Southern Univ Sci & Technol, Sch Sci, Dept Chem, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Wentao,Zhang, Liang,Yuan, Daofu,et al. Observation of the Carbon Elimination Channel in Vacuum Ultraviolet Photodissociation of OCS[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(17):4783-4787.
APA Chen, Wentao.,Zhang, Liang.,Yuan, Daofu.,Chang, Yao.,Yu, Shengrui.,...&Wang, Xingan.(2019).Observation of the Carbon Elimination Channel in Vacuum Ultraviolet Photodissociation of OCS.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(17),4783-4787.
MLA Chen, Wentao,et al."Observation of the Carbon Elimination Channel in Vacuum Ultraviolet Photodissociation of OCS".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.17(2019):4783-4787.

入库方式： OAI收割

来源：大连化学物理研究所

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