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学科主题: 物理化学
题名: Vacuum Ultraviolet Photodissociation Dynamics of Isocyanic Acid: The Hydrogen Elimination Channel
作者: Yu, Shengrui1;  Su, Shu1;  Dai, Dongxu1;  Yuan, Kaijun1;  Yang, Xueming1
通讯作者: 袁开军 ;  杨学明
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2013-12-19
DOI: 10.1021/jp407556k
卷: 117, 期:50, 页:13564-13571
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 11
项目归属: 1102
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
资助者: 1,1
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Photodissociation dynamics of the H-atom channel from HNCO photolysis between 124 and 137 nm have been studied using the H-atom Rydberg tagging time-of-flight technique. Product translational energy distributions and angular distributions have been determined. Two dissociation channels, H + NCO (X-2 Pi) and H + NCO(A(2)Sigma(+)), have been observed. The former channel involves two different dissociation pathways; one is a slow predissociation pathway through internal conversion from the excited state to the So state, and the other is a fast predissociation pathway through internal conversion from the excited state to the S, state. The latter channel dominates by a prompt dissociation via coupling to the S-2 state. As the photon energy increases, dissociation on the ground state S-0 becomes dominant. Vibrational structures are observed in both the NCO(X) and NCO(A) channels, which can be assigned to the bending mode excitation with some stretching vibrational excitation.
关键词[WOS]: INTERNAL ENERGY-DISTRIBUTION ;  DISSOCIATION DYNAMICS ;  PHOTOINITIATED DECOMPOSITION ;  CORRELATED DISTRIBUTIONS ;  HNCO DECOMPOSITION ;  AB-INITIO ;  121.6 NM ;  STATE ;  EXCITATION ;  PHOTOLYSIS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000328920200040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119558
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, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Yu, Shengrui,Su, Shu,Dai, Dongxu,et al. Vacuum Ultraviolet Photodissociation Dynamics of Isocyanic Acid: The Hydrogen Elimination Channel[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2013,117(50):13564-13571.
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