Photodissociation of cis-, trans-, and 1,1-Dichloroethylene in the Ultraviolet Range: Characterization of Cl(P-2(J)) Elimination
文献类型：期刊论文
| 作者 | Hua, Linqiang2,3; Zhang, Xiaopeng1,4; Lee, Wei-Bin1,4; Chao, Meng-Hsuan1,4; Zhang, Bing2,3; Lin, King-Chuen1,4 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY A
 |
| 出版日期 | 2010-01-14 |
| 卷号 | 114期号:1页码:37-44 |
| 产权排序 | 第二 |
| 英文摘要 | By using photofragment velocity imaging detection coupled with a (2 + 1) resonance-enhanced multiphoton ionization technique, the elimination channel of spin-orbit chlorine atoms in photodissociation of cis-, trans-, and 1,1-dichloroethylene at two photolysis wavelengths of 214.5 and 235 nm is investigated. Translational energy and angular distributions of Cl(P-2(J)) fragmentation are acquired. The Cl(P-2(J)) fragments are produced by two competing channels. The fast dissociation component with higher translational energy is characterized by a Gaussian distribution, resulting from a curve crossing of the initially excited (pi, pi*) state to nearby repulsive (pi, sigma*) and/or (n, sigma*). In contrast, the slow component with a lower translational energy is characterized by a Boltzmann distribution, which dissociates on the vibrationally hot ground state relaxed from the (pi, pi*) state via internal conversion. cis-C2H2Cl2 is found to have a larger branching of Boltzmann component than the other two isomers, The fraction of available energy partitioning into translation increases along the trend of cis- < trans- < 1,1-C2H2Cl2. This trend may be fitted by a rigid radical model and interpreted by means of a torque generated during the C-Cl bond cleavage. The anisotropy parameters are determined, and the transition dipole moments are expected to be essentially along the C=C bond axis. The results are also predicted theoretically. The relative quantum yields of Cl(P-2(J)) have a similar value for the three isomers at the two photolysis wavelengths. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 原子分子物理学 |
| 类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Chemistry ; Physics |
| 关键词[WOS] | TRIATOMIC PHOTOFRAGMENT SPECTRA ; TRANSLATIONAL ENERGY-DISTRIBUTIONS ; ULTRAFAST INTERNAL-CONVERSION ; NO2 PHOTODISSOCIATION ; ANGULAR-DISTRIBUTIONS ; CL ATOMS ; HCL ; CHLOROETHYLENES ; NM ; MOLECULES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273268900005 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2002]  |
| 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.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China 4.Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan |
| 推荐引用方式 GB/T 7714 | Hua, Linqiang,Zhang, Xiaopeng,Lee, Wei-Bin,et al. Photodissociation of cis-, trans-, and 1,1-Dichloroethylene in the Ultraviolet Range: Characterization of Cl(P-2(J)) Elimination[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(1):37-44. |
| APA | Hua, Linqiang,Zhang, Xiaopeng,Lee, Wei-Bin,Chao, Meng-Hsuan,Zhang, Bing,&Lin, King-Chuen.(2010).Photodissociation of cis-, trans-, and 1,1-Dichloroethylene in the Ultraviolet Range: Characterization of Cl(P-2(J)) Elimination.JOURNAL OF PHYSICAL CHEMISTRY A,114(1),37-44. |
| MLA | Hua, Linqiang,et al."Photodissociation of cis-, trans-, and 1,1-Dichloroethylene in the Ultraviolet Range: Characterization of Cl(P-2(J)) Elimination".JOURNAL OF PHYSICAL CHEMISTRY A 114.1(2010):37-44. |
入库方式： OAI收割
来源：武汉物理与数学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。