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题名: Ion-Pair Dissociation Dynamics of HCl: Fast Predissociation
作者: Song, Di1;  Liu, Kai1;  Kong, Fan-ao1;  Li, Juan2, 3;  Mo, Yuxiang2, 3
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2009-04-30
DOI: 10.1021/jp900383z
卷: 113, 期:17, 页:4919-4922
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: We have Studied the ion-pair dissociation dynamics of HCl -> Cl(-) ((1)S(0)) + H(+) in the 14.41-14.60 eV using tunable XUV laser and the velocity map imaging method. The measured ion-pair yield spectrum has P- and R-branch resolved vibrational structure, which indicates a predissociation mechanism for the ion-pair dissociation. All of-the anisotropy parameters for the angular distribution of the fragments have the limiting values of beta = 2, which suggests that the predissociation occurs via (1)Sigma(+) Rydber-states. and is fast in comparison with the rotational period of HCl. TO understand the predissociation dynamics, the diabatic potential energy Curve of the ion-pair state has been calculated at the MRCI/CAS/vtz level. The experimental and theoretical results obtained in this work have provided a solid foundation for the previously proposed mechanism that the ion-pair dissociation occurs via predissociation of Rydberg states converging to HCl(+) (A(2)Sigma(+)).
关键词[WOS]: MOLECULAR PHOTODISSOCIATION ;  PHOTOELECTRON-SPECTROSCOPY ;  HYDROGEN-CHLORIDE ;  DCL ;  PHOTOIONIZATION ;  AUTOIONIZATION ;  SPECTRA ;  STATES ;  CL-2
语种: 英语
WOS记录号: WOS:000265529800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141555
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
3.Tsinghua Univ, Key Lab Atom & Mol Nanosci, Beijing 100084, Peoples R China

Recommended Citation:
Song, Di,Liu, Kai,Kong, Fan-ao,et al. Ion-Pair Dissociation Dynamics of HCl: Fast Predissociation[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2009,113(17):4919-4922.
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