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题名: Vibrationally Mediated Photodissociation of CH3I [v(1)=1] at 277.5 nm: The Vibrationally Adiabatic Process
作者: Hu, Lili1;  Zhou, Zhimin1;  Dong, Changwu1;  Zhang, Lijuan1;  Du, Yikui1;  Cheng, Min1;  Zhu, Qihe1
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2013-05-30
DOI: 10.1021/jp401310g
卷: 117, 期:21, 页:4352-4357
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: From the photofragment translational spectra of C-H symmetric stretch excited CH3I [v(1) = 1, v(2) = 0] photodissociatioin at 277.5 nm, the vibrational distribution of photofragments CH3 (v(1) = 0, v(2) = 0), (0,1), (1,0), (1,1) in the I* channel are measured to be 0.02, 0.02, 0.47, 0.25, and those of CH3 (1,0), (1,1) in the I channel are 0.04, 0.05, respectively. It shows that most of the dissociated CH3I [1,0] retain the C-H symmetric stretch vibration v(1) = 1 in the photofragments CH3, and the vibrational distribution in umbrella bending mode is not seriously affected by the original CH symmetric stretch excitation. The photodissociation of CH3I [1,0] mainly follows the vibrationally adiabatic process. The original vibrational excitation [v(1) = 1] of CH3I is quite like a spectator, and the intramolecular vibrational-energy redistribution (IVR) does not play obvious part during photodissociation.
关键词[WOS]: REACTION DYNAMICS ;  EXCITED AMMONIA ;  METHYL-IODIDE ;  AB-INITIO ;  BAND ;  HOD ;  ENERGY ;  BOND ;  RESOLUTION ;  BREAKING
语种: 英语
WOS记录号: WOS:000319896900002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137955
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, Natl Lab Mol Sci, State Key Lab Mol React Dynam, Inst Chem, Beijing 100190, Peoples R China

Recommended Citation:
Hu, Lili,Zhou, Zhimin,Dong, Changwu,et al. Vibrationally Mediated Photodissociation of CH3I [v(1)=1] at 277.5 nm: The Vibrationally Adiabatic Process[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2013,117(21):4352-4357.
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