中文版 | English
Title

Observation of Competitive Nonadiabatic Photodissociation Dynamics of H2S+ Cations

Author
Corresponding AuthorZhou, Xiaoguo; Fu, Bina; Wang, Xingan
Publication Years
2022-09-01
DOI
Source Title
ISSN
1948-7185
Volume13Issue:34Pages:8157-8162
Abstract
A comprehensive understanding of dissociation mechanisms is of fundamental importance in the photochemistry of small molecules. Here, we investigated the detailed photodissociation dynamics of H2S+ near 337 nm by using the velocity map ion imaging technique together with the theoretical characterizations by developing global full-dimensional potential energy surfaces (PESs). Rotational state resolved images were acquired for the S+(4S) + H2 product channel. Significant changes in product total kinetic energy release distributions and angular distributions have been observed within a small excitation photon energy range of 5 wavenumbers. Analysis based on the full-dimensional PESs reveals that two nonadiabatic pathways determined by the transition state connecting two minima on the 12A ' state are responsible for the dramatic variation of observed product distributions. The current study has directly witnessed the competitive photodissociation mechanisms controlled by a critical energy point on the PES, thereby providing in-depth insight into the nonadiabatic dynamics in photochemistry.
URL[Source Record]
Indexed By
SCI ; EI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
Funding Project
National Key R&D Program of China[2016YFF0200500] ; National Natural Science Foundation of China["22125302","22173099","22288201","21873089"] ; LiaoNing Revitalization Talents Program[XLYC1907190]
WOS Research Area
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
WOS Accession No
WOS:000847908300001
Publisher
EI Accession Number
20223612699178
EI Keywords
Kinetic energy ; Photodissociation ; Potential energy ; Quantum chemistry
ESI Classification Code
Fluid Flow, General:631.1 ; Physical Chemistry:801.4 ; Classical Physics; Quantum Theory; Relativity:931
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/395923
DepartmentDepartment of Chemistry
Affiliation
1.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Southern Univ Sci & Technol, Sch Sci, Dept Chem, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Luan, Zhiwen,Fu, Yanlin,Tan, Yuxin,et al. Observation of Competitive Nonadiabatic Photodissociation Dynamics of H2S+ Cations[J]. Journal of Physical Chemistry Letters,2022,13(34):8157-8162.
APA
Luan, Zhiwen.,Fu, Yanlin.,Tan, Yuxin.,Wang, Yaling.,Shan, Baokun.,...&Wang, Xingan.(2022).Observation of Competitive Nonadiabatic Photodissociation Dynamics of H2S+ Cations.Journal of Physical Chemistry Letters,13(34),8157-8162.
MLA
Luan, Zhiwen,et al."Observation of Competitive Nonadiabatic Photodissociation Dynamics of H2S+ Cations".Journal of Physical Chemistry Letters 13.34(2022):8157-8162.
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