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Photofragment translational spectroscopy at 304 nm from C-H symmetric stretch excited CH3I [v (1)=1]
Zhou ZhiMin; Hu LiLi; Dong ChangWu; Zhang LiJuan; Liu Sheng; Du YiKui; Cheng Min1; Zhu QiHe
关键词Photodissociation Methyl Iodide Excited Vibrational State Photofragment Translational Spectrum (Pts)
刊名SCIENCE CHINA-CHEMISTRY
2014-06-01
DOI10.1007/s11426-013-5047-x
57期:6页:902-910
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
关键词[WOS]METHYL-IODIDE ; AB-INITIO ; PHOTODISSOCIATION ; DYNAMICS ; ENERGY ; BAND ; RESOLUTION ; STAR
英文摘要The 304 nm photodissociation of the C-H symmetric stretch excited CH3I [v (1) = 1, v (2) = 0] (v (1) denotes the C-H symmetric stretch mode, and v (2) denotes the umbrella mode) is studied with our simple photofragment translational spectrometer. An IR laser is used to excite the ground state CH3I [0, 0] to the C-H symmetric stretch excited CH3I [1, 0]. With IR laser OFF and ON, the fractions of photofragments CH3 (nu (1), nu (2)) from the 304 nm photodissociation of CH3I [1, 0] have been determined through the photofragment translational spectra (PTS) from measuring I and I* and also through the PTS from measuring CH3 (0, 0) (1, 0) (0, 1) and (1, 1). The experimental results show that the C-H symmetric stretch vibration (v (1) = 1) in parent molecules is about 66% retained in the photofragments in the I channel, but only 24% in the I* channel. The populations of photofragments CH3 (0, 2) and (0, 3) are higher than CH3 (0, 0) and (0, 1), showing strong inverted population both in I and I* channels.
语种英语
WOS记录号WOS:000336747700015
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145413
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
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Zhou ZhiMin,Hu LiLi,Dong ChangWu,et al. Photofragment translational spectroscopy at 304 nm from C-H symmetric stretch excited CH3I [v (1)=1][J]. SCIENCE CHINA-CHEMISTRY,2014,57(6):902-910.
APA Zhou ZhiMin.,Hu LiLi.,Dong ChangWu.,Zhang LiJuan.,Liu Sheng.,...&Zhu QiHe.(2014).Photofragment translational spectroscopy at 304 nm from C-H symmetric stretch excited CH3I [v (1)=1].SCIENCE CHINA-CHEMISTRY,57(6),902-910.
MLA Zhou ZhiMin,et al."Photofragment translational spectroscopy at 304 nm from C-H symmetric stretch excited CH3I [v (1)=1]".SCIENCE CHINA-CHEMISTRY 57.6(2014):902-910.
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