Br(P-2(j)) atom formation dynamics in ultraviolet photodissociation of tert-butyl bromide and iso-butyl bromide
文献类型：期刊论文
| 作者 | Wang, Yanmei; Zhang, Song; Wei, Zhengrong; Zheng, Qiusha; Zhang, Bing |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2006-11-14 |
| 卷号 | 125期号:18 |
| 英文摘要 | The photodissociation dynamics of tert-C4H9Br and iso-C4H9Br has been studied at 234 and 265 nm using two-dimensional velocity map imaging technique. The translational energy and angular distributions have been analyzed for Br, Br-*, and tert-C4H9 radical. The energy distribution of Br atom in the photodissociation of tert-C4H9Br is found to consist of two Gaussian components. The two components are correlated to two independent reaction paths on the excited potential energy surfaces: (1) the high-energy component from the prompt dissociation along the C-Br stretching mode and (2) the low-energy component from the repulsive mode along the C-Br stretching, coupled with some bending motions. For the energy distribution of Br-* atom in the photodissociation of tert-C4H9Br, a third multiphoton dissociative ionization channel is observed at 265 nm in addition to the two energy components corresponding to channels (1) and (2). The energy distributions of Br and Br-* atoms in the photodissociation of iso-C4H9Br can be fitted using only one Gaussian function indicating a single formation channel. Relative quantum yields for Br(P-2(3/2)) at 234 and 265 nm in the photodissociation of tert-C4H9Br are measured to be 0.76 and 0.65, respectively. For iso-C4H9Br, the measured value is Phi(234 nm)(Br)=0.81. The contribution of bending modes to Br and Br-* is much more obvious in the photodissociation of tert-C4H9Br than in iso-C4H9Br. |
| 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] | THRESHOLD IONIZATION SPECTROSCOPY ; EMISSION-SPECTROSCOPY ; MOLECULAR-OXYGEN ; 265 NM ; CH3I ; SPECTRA ; DISSOCIATION ; 266-NM ; IODIDE ; 1-BROMOPROPANE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242002400024 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4638]  |
| 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 | Wang, Yanmei,Zhang, Song,Wei, Zhengrong,et al. Br(P-2(j)) atom formation dynamics in ultraviolet photodissociation of tert-butyl bromide and iso-butyl bromide[J]. JOURNAL OF CHEMICAL PHYSICS,2006,125(18). |
| APA | Wang, Yanmei,Zhang, Song,Wei, Zhengrong,Zheng, Qiusha,&Zhang, Bing.(2006).Br(P-2(j)) atom formation dynamics in ultraviolet photodissociation of tert-butyl bromide and iso-butyl bromide.JOURNAL OF CHEMICAL PHYSICS,125(18). |
| MLA | Wang, Yanmei,et al."Br(P-2(j)) atom formation dynamics in ultraviolet photodissociation of tert-butyl bromide and iso-butyl bromide".JOURNAL OF CHEMICAL PHYSICS 125.18(2006). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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