中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 近代物理研究所
  3. 中国科学院近代物理研究所
Three-body fragmentation dynamics of CH3CCH3+investigated by 50-keV/u Ne8+impact: Comparison with its isomer ion CH2CCH2 3+

文献类型：期刊论文

作者Yuan, Hang1,2; Xu, Zhongfeng1; Xu, Shenyue2,3; Ma, Chao4; Zhang, Zhen1; Guo, Dalong2,3; Zhu, Xiaolong2,3; Zhao, Dongmei2; Zhang, Shaofeng2,3; Yan, Shuncheng2,3
刊名PHYSICAL REVIEW A
出版日期2022-02-22
卷号105期号:2页码:8
ISSN号2469-9926
DOI10.1103/PhysRevA.105.022814
通讯作者Xu, Shenyue(s.xu@impcas.ac.cn) ; Ma, Xinwen(x.ma@impcas.ac.cn)
英文摘要The three-body fragmentation dynamics of propyne (CH3CCH) to H+ + CH+ + C2H2+ and H+ + CH2+ + C2H+ is investigated by 50-keV/u Ne8+ ion impact. Employing the reaction microscope, all three ionic fragments are detected in coincidence, and the momentum vector as well as kinetic energy of each fragment is obtained. By analyzing the momentum and kinetic energy correlation between different fragments, various fragmentation mechanisms are identified, and the relative ratio of each mechanism is determined. We find that the concerted fragmentation with CH and CC bonds breaking simultaneously and the sequential pathway with CH breakage prior to the CC breakage are the major contributions to both channels. In contrast, the sequential pathway with CC breakage prior to CH breakage was found to make a minor contribution only to the H+ + CH+ + C2H2+ channel. In addition, we compare the present results for CH3CCH with CH2CCH2 published in Ma et al. [C. Ma, S. Xu, D. Zhao, D. Guo, S. Yan, W. Feng, X. Zhu, and X. Ma, Phys. Rev. A 101, 052701 (2020)]. The location of the CH and CC bonds' breakage, either from distinct C atoms or from the same C atom, leads to similar dissociation mechanisms but different ionic fragments for the two isomers.
WOS关键词MOMENTUM SPECTROSCOPY ; RECOIL-ION ; DISSOCIATIONS ; IONIZATION ; CH4
资助项目National Key Research and Development Program of China[2017YFA0402300] ; National Natural Science Foundation of China[11874365] ; National Natural Science Foundation of China[11875219]
WOS研究方向Optics ; Physics
语种英语
WOS记录号WOS:000763099800014
出版者AMER PHYSICAL SOC
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://119.78.100.186/handle/113462/141960]  
专题中国科学院近代物理研究所
通讯作者Xu, Shenyue; Ma, Xinwen
作者单位1.Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
4.Engn Univ PAP, Fdn Dept, Xian 710086, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Hang,Xu, Zhongfeng,Xu, Shenyue,et al. Three-body fragmentation dynamics of CH3CCH3+investigated by 50-keV/u Ne8+impact: Comparison with its isomer ion CH2CCH2 3+[J]. PHYSICAL REVIEW A,2022,105(2):8.
APA Yuan, Hang.,Xu, Zhongfeng.,Xu, Shenyue.,Ma, Chao.,Zhang, Zhen.,...&Ma, Xinwen.(2022).Three-body fragmentation dynamics of CH3CCH3+investigated by 50-keV/u Ne8+impact: Comparison with its isomer ion CH2CCH2 3+.PHYSICAL REVIEW A,105(2),8.
MLA Yuan, Hang,et al."Three-body fragmentation dynamics of CH3CCH3+investigated by 50-keV/u Ne8+impact: Comparison with its isomer ion CH2CCH2 3+".PHYSICAL REVIEW A 105.2(2022):8.

入库方式： OAI收割

来源：近代物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。