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题名: Photodissociation dynamics of the methyl radical at 212.5 nm: Effect of parent internal excitation
作者: Wu, GR;  Jiang, B;  Ran, Q;  Zhang, JH;  Harich, SA;  Yang, XM
刊名: JOURNAL OF CHEMICAL PHYSICS
发表日期: 2004-02-01
DOI: 10.1063/1.1635363
卷: 120, 期:5, 页:2193-2198
收录类别: SCI
文章类型: Article
项目归属: 1102
产权排名: 1;1
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: Photodissociation dynamics of the CH3 radical at 212.5 nm has been investigated using the H atom Rydberg tagging time-of-flight method with a pure CH3 radical source generated by the photolysis of CH3I at 266 nm. Time-of-flight spectra of the H atom products from the photolysis of both cold and hot methyl radicals have been measured at different photolysis polarizations. Experimental results indicate that the photodissociation of the methyl radical in its ground vibrational state at 212.5 nm excitation occurs on a very fast time scale in comparison with its rotational period, indicating the CH3 dissociation at 212.5 nm occurs on the excited 3s Rydberg state surface. Experimental evidence also shows that the photodissociation of the methyl radical in the nu(2)=1 state of the umbrella mode at 212.5 nm excitation is characteristically different from that in the ground vibrational state. (C) 2004 American Institute of Physics.
关键词[WOS]: PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY ;  MULTI-PHOTON IONIZATION ;  IODIDE ;  CH3 ;  MOLECULES ;  SPECTRA ;  STATE ;  BAND ;  CD3
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000188498400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82257
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.Acad Sinica, Inst Atom & Mol Sci, Taipei, Taiwan
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian, Peoples R China

Recommended Citation:
Wu, GR,Jiang, B,Ran, Q,et al. Photodissociation dynamics of the methyl radical at 212.5 nm: Effect of parent internal excitation[J]. JOURNAL OF CHEMICAL PHYSICS,2004,120(5):2193-2198.
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