Photolysis of 1-C4H9I and 2-C4H9I at 266 nm: Direct Observation of the Effect of Branching on the Photodissociation Mechanism
文献类型：期刊论文
| 作者 | Liu, Yuzhu1,2; Zheng, Qiusha1,2; Zhang, Yan1,2; Zhang, Rongrong1,2; Wang, Yanmei1,2; Zhang, Bing1,2 |
| 刊名 | CHEMPHYSCHEM
 |
| 出版日期 | 2009-03-23 |
| 卷号 | 10期号:5页码:830-834 |
| 关键词 | alkyl iodides mass spectrometry photolysis reaction mechanisms velocity ion imaging |
| 通讯作者 | Zhang, B (reprint author), Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China. |
| 英文摘要 | Photodissociation dynamics of 1-C4H9I and 2-C4H9I at 266 nm is investigated by velocity ion imaging. Photodissociation channels of 1-C4H9I and 2-C4H9I are analyzed and compared. For 1-C4H9I the photodissociation dynamics only correlates with direct dissociation via repulsive surfaces. While for 2-C4H9I, a new formation channel of I and I* atoms is observed. It is attributed to the repulsive mode along the C-I stretch, coupled with some bending motions. As the alkyl group becomes more branched, the contribution of bending modes to I and I* is much more obvious in the photodissociation of 2-C4H9I than in that of 1-C4H9I. Additionally, the curve-crossing probability between (3)Q(0) and (1)Q(1), increases greatly with branching, from 0.31 for 1-C4H9I to 0.70 for 2-C4H9I in the prompt dissociation channel; the relative quantum yield for I* decreases strongly with branching, from 0.65 for 1-C4H9I to 0.28 for 2-C4H9I. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Chemistry ; Physics |
| 关键词[WOS] | MAGNETIC CIRCULAR-DICHROISM ; A-BAND PHOTOLYSIS ; TERT-BUTYL IODIDE ; METHYL-IODIDE ; MULTIPHOTON IONIZATION ; EMISSION-SPECTROSCOPY ; MOLECULAR-OXYGEN ; ALKYL IODIDES ; CH3I ; DYNAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264774300015 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2250]  |
| 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 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yuzhu,Zheng, Qiusha,Zhang, Yan,et al. Photolysis of 1-C4H9I and 2-C4H9I at 266 nm: Direct Observation of the Effect of Branching on the Photodissociation Mechanism[J]. CHEMPHYSCHEM,2009,10(5):830-834. |
| APA | Liu, Yuzhu,Zheng, Qiusha,Zhang, Yan,Zhang, Rongrong,Wang, Yanmei,&Zhang, Bing.(2009).Photolysis of 1-C4H9I and 2-C4H9I at 266 nm: Direct Observation of the Effect of Branching on the Photodissociation Mechanism.CHEMPHYSCHEM,10(5),830-834. |
| MLA | Liu, Yuzhu,et al."Photolysis of 1-C4H9I and 2-C4H9I at 266 nm: Direct Observation of the Effect of Branching on the Photodissociation Mechanism".CHEMPHYSCHEM 10.5(2009):830-834. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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