UV photodissociation dynamics of CH2I2 molecule
文献类型：期刊论文
| 作者 | Xu, HF; Liu, SL; Ma, XX; Dai, DX; Xie, JC; Sha, GH |
| 刊名 | acta physica sinica
 |
| 出版日期 | 2002-02-01 |
| 卷号 | 51期号:2页码:240-246 |
| 关键词 | CH2I2 ion-velocity-imaging adaibatic and nonadiabatic dissociation |
| 英文摘要 | photodissociation dynamics of ch2i2 moleculae was investigated at different wavelengths of 277 to 305nm by an ion imaging spectrometer operated under optimal conditions for velocity mapping, where the ions were generated from (2 + 1) resonance-enhanced ionization (rempi) of the photofragments i(p-2(3/2)) and i* (p-2(1/2)) at the same wavelength as that of the photolysis uv laser. the released kinetic energies and the angular distributions of both fragments at different photolysis wavelengths were derived from the three-dimensional velocity images. it was found that the photofragment of ch2i radical was highly excited. about 80% of the total released energy deposits into internal freedom. this fact can be explained by the impulse model. a remarkable difference between the kinetic energy distributions of i(p-2(3/2)) and i* (p-2(1/2)) was found. the dissociation mechanism of the formation of both i(p-2(3/2)) and i* (p-2(1/2)) fragments is discussed in terms of anisotropy parameter and energy partition. the kinetic energy distributions of the i(p-2(3/2)) and i* (p-2(1/2)) fragments are determined by the adiabatic and nonadiabatic dissociation processes in the electronically excited states of ch2i2. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | physics, multidisciplinary |
| 研究领域[WOS] | physics |
| 关键词[WOS] | methylene iodide |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000173710400008 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139047]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Univ Sci & Technol China, Dept Chem Phys, Open Lab Bond Select Chem, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, HF,Liu, SL,Ma, XX,et al. UV photodissociation dynamics of CH2I2 molecule[J]. acta physica sinica,2002,51(2):240-246. |
| APA | Xu, HF,Liu, SL,Ma, XX,Dai, DX,Xie, JC,&Sha, GH.(2002).UV photodissociation dynamics of CH2I2 molecule.acta physica sinica,51(2),240-246. |
| MLA | Xu, HF,et al."UV photodissociation dynamics of CH2I2 molecule".acta physica sinica 51.2(2002):240-246. |
入库方式： OAI收割
来源：大连化学物理研究所
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