中文版 | English
Title

The vibronic state dependent predissociation of H2S: determination of all fragmentation processes

Author
Corresponding AuthorHu, Xixi; Ashfold, Michael N. R.; Yuan, Kaijun
Publication Years
2023-02-01
DOI
Source Title
ISSN
2041-6520
EISSN
2041-6539
Abstract
Photochemistry plays a significant role in shaping the chemical reaction network in the solar nebula and interstellar clouds. However, even in a simple triatomic molecule photodissociation, determination of all fragmentation processes is yet to be achieved. In this work, we present a comprehensive study of the photochemistry of H2S, derived from cutting-edge translational spectroscopy measurements of the H, S(D-1) and S(S-1) atom products formed by photolysis at wavelengths across the range 155-120 nm. The results provide detailed insights into the energy disposal in the SH(X), SH(A) and H-2 co-fragments, and the atomisation routes leading to two H atoms along with S(P-3) and S(D-1) atoms. Theoretical calculations allow the dynamics of all fragmentation processes, especially the bimodal internal energy distributions in the diatomic products, to be rationalised in terms of non-adiabatic transitions between potential energy surfaces of both (1)A ' and (1)A '' symmetry. The comprehensive picture of the wavelength-dependent (or vibronic state-dependent) photofragmentation behaviour of H2S will serve as a text-book example illustrating the importance of non-Born-Oppenheimer effects in molecular photochemistry, and the findings should be incorporated in future astrochemical modelling.
URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
Funding Project
National Natural Science Foundation of China (NSFC Center for Chemical Dynamics)[22288201] ; National Natural Science Foundation of China["22241304","22073042","22122302","22225303","22233003"] ; Key Technology Team of the Chinese Academy of Sciences[GJJSTD20220001] ; Innovation Program for Quantum Science and Technology[2021ZD0303304] ; Liaoning Revitalization Talents Program[XLYC1907154] ; Australian Research Council (ARC)[DE200100549] ; Engineering and Physical Sciences Research Council (EPSRC)[EP/L005913]
WOS Research Area
Chemistry
WOS Subject
Chemistry, Multidisciplinary
WOS Accession No
WOS:000936185800001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/490018
DepartmentDepartment of Chemistry
Affiliation
1.Dalian Univ Technol, Sch Phys, Key Lab Mat Modificat Laser Ion & Electron Beams, Chinese Minist Educ, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam & Dalian Coherent Li, Dalian 116023, Peoples R China
3.Nanjing Univ, Inst Theoret & Computat Chem, Sch Chem & Chem Engn, Key Lab Mesoscop Chem, Nanjing 210023, Peoples R China
4.Univ Bristol, Sch Chem, Bristol BS81TS, England
5.Univ New South Wales, Sch Chem, Sydney, NSW 2052, Australia
6.Nanjing Univ, Ctr Modern Anal, Inst Brain Sci, Kuang Yaming Honors Sch,Jiangsu Key Lab Vehicle Em, Nanjing 210023, Peoples R China
7.Hefei Natl Lab, Hefei 230088, Peoples R China
8.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Yarui,Chen, Junjie,Luo, Zijie,et al. The vibronic state dependent predissociation of H2S: determination of all fragmentation processes[J]. Chemical Science,2023.
APA
Zhao, Yarui.,Chen, Junjie.,Luo, Zijie.,Chang, Yao.,Yang, Jiayue.,...&Yang, Xueming.(2023).The vibronic state dependent predissociation of H2S: determination of all fragmentation processes.Chemical Science.
MLA
Zhao, Yarui,et al."The vibronic state dependent predissociation of H2S: determination of all fragmentation processes".Chemical Science (2023).
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