Predissociation dynamics of B state of methyl iodide with femtosecond pump-probe technique
文献类型：期刊论文
| 作者 | Wei, Zheng-Rong; Zhang, Feng; Wang, Yan-Rnei; Zhang, Bing |
| 刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2007-08-27 |
| 卷号 | 20期号:4页码:419-424 |
| 关键词 | methyl iodide predissociation pump-probe femtosecond |
| 英文摘要 | The predissociation dynamics of B Rydberg state of methyl iodide is studied with femtosecond two-color pump-probe time-of-flight spectra at pump pulse of 400 nm and probe pulse of 800 nm. The dominant product channels are the CH3I+ and CH3+ formation. The time-dependent signals for CH3I+ and, CH3+ ions are obtained. Both of the signal curves can be fitted by biexponential decays with time constants of tau(1) and tau(2), tau(1) is assigned to the lifetimes of high Rydberg states, which can be accessed by absorbing three 400 nm pump pulses and tau(2) reflects the dynamics of B Rydberg state, which is accessed with two pump pulses. The lifetime of B Rydberg state is determined to be about 1.57 ps, which is incredibly consistent with the previous studies. The results were interpreted as a multiphoton dissociative ionization processes. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | ULTRAFAST PHOTODISSOCIATION DYNAMICS ; MULTIPHOTON IONIZATION SPECTROSCOPY ; RYDBERG STATES ; DISSOCIATION DYNAMICS ; MASS-SPECTROMETRY ; (B)OVER-TILDE STATE ; MOLECULAR-OXYGEN ; ARYL HALIDES ; GAS-PHASE ; 195 NM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249465100015 |
| 公开日期 | 2015-08-18 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4906]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Zheng-Rong,Zhang, Feng,Wang, Yan-Rnei,et al. Predissociation dynamics of B state of methyl iodide with femtosecond pump-probe technique[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2007,20(4):419-424. |
| APA | Wei, Zheng-Rong,Zhang, Feng,Wang, Yan-Rnei,&Zhang, Bing.(2007).Predissociation dynamics of B state of methyl iodide with femtosecond pump-probe technique.CHINESE JOURNAL OF CHEMICAL PHYSICS,20(4),419-424. |
| MLA | Wei, Zheng-Rong,et al."Predissociation dynamics of B state of methyl iodide with femtosecond pump-probe technique".CHINESE JOURNAL OF CHEMICAL PHYSICS 20.4(2007):419-424. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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