Photodissociation Dynamics of Chloroiodomethane in the A-Band
文献类型：期刊论文
| 作者 | Zhang Chang-Hua; Zhang Yan; Zhang Song; Zhang Bing1 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 25期号:8页码:1708-1712 |
| 关键词 | Photodissociation Ion velocity imaging Chloroiodomethane Secondary photodissociation process |
| 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 | The photodissociation dynamics of chloroiodomethane in the A-band has been investigated by ion velocity imaging coupled with a resonance enhanced multiphoton ionization (REMPI) scheme. Translational energies and angular distributions of the corresponding photofragments were obtained by detecting ion images of I*(5p P-2(1/2))and I (5p P-2(3/2)) at 266 and 277 nm. Single-peaked Gaussian translational energy distributions were found for I and I* and could be interpreted in terms of the soft radical approximation. The formation of I and I* took place via a fast direct dissociation process on a repulsive potential energy surface. The obtained anisotropy parameter 6 proved that the existence of a nonadiabatic transition between the (3)Q(0) and (1)Q(1) states, and excitation at these wavelengths was predominated to the (3)Q(0) state. The nonadiabatic transition between the (3)Q(0) and (1)Q(1) states is stronger at shorter wavelengths. Around 235 nm, the isotropic Cl and Cl* ion images Suggest that the observed chlorine atoms come from the secondary UV photodissociation of CH2Cl radicals which are initially produced by the photodissociation of CH2ICl. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | ENHANCED MULTIPHOTON IONIZATION ; METHYL-IODIDE ; ALKYL IODIDES ; NM ; CH3I ; PHOTOELECTRON ; SPECTROSCOPY ; MOLECULES ; CH2BRCL ; CF3I |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000268651600038 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2185]  |
| 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 Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Chang-Hua,Zhang Yan,Zhang Song,et al. Photodissociation Dynamics of Chloroiodomethane in the A-Band[J]. ACTA PHYSICO-CHIMICA SINICA,2009,25(8):1708-1712. |
| APA | Zhang Chang-Hua,Zhang Yan,Zhang Song,&Zhang Bing.(2009).Photodissociation Dynamics of Chloroiodomethane in the A-Band.ACTA PHYSICO-CHIMICA SINICA,25(8),1708-1712. |
| MLA | Zhang Chang-Hua,et al."Photodissociation Dynamics of Chloroiodomethane in the A-Band".ACTA PHYSICO-CHIMICA SINICA 25.8(2009):1708-1712. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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