Photofragment translational spectroscopy of CH3I at 225 nm-with the high excitation of the symmetric stretch vibration of CH3 fragment
文献类型：期刊论文
| 作者 | Hu, Lili1,2; Zhou, Zhimin1,2; Dong, Changwu1,2; Zhang, Lijuan1,2; Du, Yikui1; Cheng, Min1; Zhu, Qihe1 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2012-10-14 |
| 卷号 | 137期号:14 |
| 关键词 | Electron Impact Excitation Molecule-photon Collisions Organic Compounds Photodissociation Time Of Flight Spectra Vibrational States |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.4757019 |
| 英文摘要 | The photodissociation dynamics of CH3I at 225 nm is studied on our high resolution mini-TOF photofragment translational spectrometer. The photofragment translational spectra of the I* and the I channels via parallel (parallel to) and perpendicular (perpendicular to) transitions, i.e., of the four pathways (3)Q(0), (3)Q(0) <- (1)Q(1), (1)Q(1), and (1)Q(1) <- (3)Q(0), are obtained with both the symmetric stretch (nu(1)) and the umbrella (nu(2)) vibrational modes of the CH3 fragments partially resolved. The strong excitation of the symmetric stretch mode (nu(1)) is revealed in both the I and the I* channels. The branching fractions for the four pathways (0.09 for (3)Q(0), 0.03 for (3)Q(0) <- (1)Q(1), 0.34 for (1)Q(1), and 0.54 for (1)Q(1) <- (3)Q(0)) show that the parallel transition ((3)Q(0) <- X) is the major and the I channel is dominant in the photodissociation of CH3I at 225 nm. The curve-crossing probability is found to be 0.86 for (1)Q(1) <- (3)Q(0) but 0.08 for (3)Q(0) <- (1)Q(1). (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757019] |
| 语种 | 英语 |
| WOS记录号 | WOS:000310302800013 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48191]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Du, Yikui |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Natl Lab Mol Sci, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Lili,Zhou, Zhimin,Dong, Changwu,et al. Photofragment translational spectroscopy of CH3I at 225 nm-with the high excitation of the symmetric stretch vibration of CH3 fragment[J]. JOURNAL OF CHEMICAL PHYSICS,2012,137(14). |
| APA | Hu, Lili.,Zhou, Zhimin.,Dong, Changwu.,Zhang, Lijuan.,Du, Yikui.,...&Zhu, Qihe.(2012).Photofragment translational spectroscopy of CH3I at 225 nm-with the high excitation of the symmetric stretch vibration of CH3 fragment.JOURNAL OF CHEMICAL PHYSICS,137(14). |
| MLA | Hu, Lili,et al."Photofragment translational spectroscopy of CH3I at 225 nm-with the high excitation of the symmetric stretch vibration of CH3 fragment".JOURNAL OF CHEMICAL PHYSICS 137.14(2012). |
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来源：化学研究所
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