Photodissociation dynamics of CH2Br2 near 234 and 267 nm
文献类型：期刊论文
| 作者 | Ji, Lei; Tang, Ying; Zhu, Rongshu; Wei, Zhengrong; Zhang, Bing |
| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 67期号:1页码:273-280 |
| 关键词 | photodissociation dynamics CH2Br2 ion velocity imaging |
| 英文摘要 | The photodissociation dynamics of CH2Br2 was investigated near 234 and 267 nm. A two-dimensional photofragment ion velocity imaging technique coupled with a [2 + I] resonance-enhanced multiphoton (REMPI) ionization scheme was utilized to obtain the angular and translational energy distributions of the nascent Br(P-2(3/2)) and Br* (P-2(1/2)) atoms. The obtained translational energy distributions of Br and Br* are found consist of two components which should be come from the radical channel and secondary dissociation process, respectively. It is suggested that the symmetry reduction from C-2V, to C-S during photodissociation invokes a non-adiabatic coupling between the 2B(1) and A(1) states. Consequently, the higher internal energy distribution of Br channel than Br* formation channel and the broader translational energy distribution of the former are presumed correlate with a variety of vibrational excitation disposal at the crossing point resulting from the larger non-adiabatic crossing from 2B(1) to A(1) state than the reverse crossing. Moreover, the measured anisotropy parameter P indicate that fragments recoil along the Br-Br direction mostly in the photodissociation. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 关键词[WOS] | MAGNETIC CIRCULAR-DICHROISM ; BOND-DISSOCIATION ENERGIES ; TIME-OF-FLIGHT ; METHYL-IODIDE ; A-BAND ; RECOIL ANISOTROPY ; CF3I ; SPECTRA ; CF2BR2 ; PHOTOFRAGMENTATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246085800038 |
| 公开日期 | 2015-09-08 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/7803]  |
| 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 3.Da Qing Petr Inst, Dept Chem & Chem Engn, Da Qing 163318, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Lei,Tang, Ying,Zhu, Rongshu,et al. Photodissociation dynamics of CH2Br2 near 234 and 267 nm[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2007,67(1):273-280. |
| APA | Ji, Lei,Tang, Ying,Zhu, Rongshu,Wei, Zhengrong,&Zhang, Bing.(2007).Photodissociation dynamics of CH2Br2 near 234 and 267 nm.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,67(1),273-280. |
| MLA | Ji, Lei,et al."Photodissociation dynamics of CH2Br2 near 234 and 267 nm".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 67.1(2007):273-280. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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