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题名: Photodissociation of bromobenzene at 266 nm
作者: Zhang, H;  Zhu, RS;  Wang, GJ;  Han, KL;  He, GZ;  Lou, NQ
刊名: JOURNAL OF CHEMICAL PHYSICS
发表日期: 1999-02-08
卷: 110, 期:6, 页:2922-2927
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: The photodissociation of C6H5Br at 266 nm has been investigated on the universal crossed molecular beam machine, and time-of-flight spectra as well as the angular distribution of Br atom have been measured. Photofragment translational energy distribution P(E-t) reveals that about 47% of the available energy is partitioned into translational energy. The anisotropy parameter beta at this wavelength is -0.7+/-0.2. From P(E-t) and beta, we deduce that C6H5Br photodissociation is a fast process and the transition dipole moment is almost perpendicular to the C-Br bond. Ab initio calculations have been performed, and the calculated results show that the geometry of the first excited state of bromobenzene has changed apparently compared with that of the ground state. Two kinds of possible fast dissociation mechanism have also been proposed. (C) 1999 American Institute of Physics. [S0021-9606(99)01206-4].
关键词[WOS]: TRANSLATIONAL ENERGY-DISTRIBUTION ;  MOLECULAR-BEAMS ;  193 NM ;  ANGULAR-DISTRIBUTION ;  EXCITED-STATES ;  ARYL HALIDES ;  248 NM ;  PHOTOFRAGMENTATION ;  FRAGMENT ;  DISSOCIATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000078379800023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85273
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, H,Zhu, RS,Wang, GJ,et al. Photodissociation of bromobenzene at 266 nm[J]. JOURNAL OF CHEMICAL PHYSICS,1999,110(6):2922-2927.
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