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题名: Photofragment translational spectroscopy of ICl near 304 and 280 nm: Observation of an intense hot band effect
作者: Cheng Min1;  Yu ZiJun1;  Xu XiLing1;  Yu Dan1;  Du YiKui1;  Zhu QiHe1
关键词: photofragment translational spectroscopy ;  ICl ;  photodissociation ;  hot band
刊名: SCIENCE CHINA-CHEMISTRY
发表日期: 2012-06-01
DOI: 10.1007/s11426-012-4584-z
卷: 55, 期:6, 页:1148-1154
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The photodissociation dynamics of ICl has been studied near 304 and 280 nm on a simple miniature time of flight (mini-TOF) photofragment translational spectrometer with a short pulse of a weak acceleration field. An intense hot band effect was observed. Many small peaks were resolved in each photofragment translational spectrum (PTS). Based on simulations, the principal peaks were assigned not only to the different photodissociation channels (1) I + Cl, (2) I + Cl*, (3) I* + Cl, or (4) I* + Cl*, but also to the different chlorine isotopes (Cl-35 and Cl-37). Moreover, some extra peaks showed the existence of an intense hot band effect from vibrationally excited ICl molecules, though only a few percent of ICl molecules remained in the vibrationally excited states in our supersonic molecular beam. Based on the spectra near 304 nm, the quantum yield I broken vertical bar of each channel, the curve crossing, and the branching fraction sigma from each transition state were determined.
关键词[WOS]: ANGULAR-MOMENTUM DISTRIBUTIONS ;  TIME-RESOLVED LMR ;  DISSOCIATIVE IONIZATION ;  LASER PHOTOLYSIS ;  ELECTRIC-FIELD ;  PHOTODISSOCIATION ;  POTENTIALS ;  ATOMS ;  STATE ;  YIELD
语种: 英语
WOS记录号: WOS:000305238400038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143139
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, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China

Recommended Citation:
Cheng Min,Yu ZiJun,Xu XiLing,et al. Photofragment translational spectroscopy of ICl near 304 and 280 nm: Observation of an intense hot band effect[J]. SCIENCE CHINA-CHEMISTRY,2012,55(6):1148-1154.
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