Direct imaging of the electronic dephasing in benzene: Experimental evidence for ultrafast intersystem crossing of T-3 -> S-2 states
文献类型：期刊论文
| 作者 | Qiu, Xuejun; Qin, Chaochao; Wang, Jian; Tang, Ying; Zhang, Bing1 |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2012-09-21 |
| 卷号 | 86期号:3 |
| 英文摘要 | The electronic dephasing of benzene on the second excited state has been observed using a femtosecond time-resolved photoelectron imaging technique coupled with time-resolved mass spectroscopy. Upon absorption of two 400-nm photons, benzene is excited to the S-2 state, and the time evolution of the parent ion can be well described by a biexponential decay: a rapid dephasing pathway with 43 fs and a longer-lived channel with 1.06 ps. The fast dephasing is ascribed to the internal conversion through the S-2-S-1 conical intersections, and the slower one is attributed to the intersystem crossing from the S-2 state. It is possible that the vibrational excitation modes (9(0)(1)16(1)(1), 5(0)(1), and 9(0)(1)) from the S-2 state enhance the spin-orbit coupling greatly, which leads to the S-2-T-3 intersystem crossing. The photoelectron kinetic energy distributions between 1.1 and 1.7 eV exhibit a rapid energy transfer, revealing nuclear motion on the S-2 adiabatic surface. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Optics ; Physics |
| 关键词[WOS] | PHOTOELECTRON-SPECTRUM ; CONICAL INTERSECTIONS ; AROMATIC-HYDROCARBONS ; INTERNAL-CONVERSION ; DEWAR-BENZENE ; SPECTROSCOPY ; PHOTOISOMERIZATION ; TRANSITIONS ; DYNAMICS ; ALLENE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309101100006 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1645]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Xuejun,Qin, Chaochao,Wang, Jian,et al. Direct imaging of the electronic dephasing in benzene: Experimental evidence for ultrafast intersystem crossing of T-3 -> S-2 states[J]. PHYSICAL REVIEW A,2012,86(3). |
| APA | Qiu, Xuejun,Qin, Chaochao,Wang, Jian,Tang, Ying,&Zhang, Bing.(2012).Direct imaging of the electronic dephasing in benzene: Experimental evidence for ultrafast intersystem crossing of T-3 -> S-2 states.PHYSICAL REVIEW A,86(3). |
| MLA | Qiu, Xuejun,et al."Direct imaging of the electronic dephasing in benzene: Experimental evidence for ultrafast intersystem crossing of T-3 -> S-2 states".PHYSICAL REVIEW A 86.3(2012). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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