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题名: State-selected imaging studies of formic acid photodissociation dynamics
作者: Huang, Cunshun1;  Zhang, Cuimei1, 2;  Yang, Xueming1
关键词: organic compounds ;  photochemistry ;  photodissociation ;  photoionisation ;  rotational states ;  translational states ;  ultraviolet spectra
刊名: JOURNAL OF CHEMICAL PHYSICS
发表日期: 2010-04-21
DOI: 10.1063/1.3386576
卷: 132, 期:15
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: The photodissociation dynamics of formic acid have been studied using the velocity map ion imaging at the UV region. The measurements were made with resonance enhancement multiphoton ionization (REMPI) spectroscopy and dc slicing ion imaging. The OH REMPI spectrum from the photodissociation of formic acid at 244 nm has been recorded. The spectrum shows low rotational excitation (N < 4). By fixing the probe laser at the specific rotational transitions, the resulting OH images from various dissociation wavelengths have been accumulated. The translational energy distributions derived from the OH images imply that about half of the available energies go to the photofragments internal excitation. The dissociation dynamics of formic acid were also discussed in view of the recent theoretical calculations.
关键词[WOS]: AB-INITIO ;  CONFORMATIONAL MEMORY ;  CARBOXYLIC-ACIDS ;  LASER PHOTOLYSIS ;  QUANTUM YIELD ;  GAS-PHASE ;  OH ;  FLUORESCENCE ;  IONIZATION ;  NM
语种: 英语
WOS记录号: WOS:000276971500020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141743
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, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China

Recommended Citation:
Huang, Cunshun,Zhang, Cuimei,Yang, Xueming. State-selected imaging studies of formic acid photodissociation dynamics[J]. JOURNAL OF CHEMICAL PHYSICS,2010,132(15).
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