Resonant photoelectron imaging of deprotonated uracil anion via vibrational levels of a dipole-bound excited state
文献类型：期刊论文
| 作者 | Huang, DL; Liu, HT; Ning, CG; Dau, PD; Wang, LS |
| 刊名 | CHEMICAL PHYSICS
 |
| 出版日期 | 2017 |
| 卷号 | 482页码:374-383 |
| 关键词 | Dipole-bound State Deprotonated Uracil Photoelectron Imaging Resonant Photoelectron Spectroscopy Autodetachment |
| ISSN号 | 0301-0104 |
| DOI | 10.1016/j.chemphys.2016.06.003 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We report both non-resonant and resonant high-resolution photoelectron imaging of cryogenically cooled deprotonated uracil anions, N1[U-H](-), via vibrational levels of a dipole-bound excited state. Photodetachment spectroscopy of N1[U-H](-) was reported previously (Liu et al., 2014), in which forty-six vibrational autodetachment resonances due to the excited dipole-bound state were observed. By tuning the detachment laser to the vibrational levels of the dipole-bound state, we obtained high resolution resonant photoelectron spectra, which are highly non-Franck-Condon. The resonant photoelectron spectra reveal many Franck-Condon inactive vibrational modes, significantly expanding the capability of photoelectron spectroscopy. A total of twenty one fundamental vibrational frequencies for the N1[U-H](.) radical are obtained, including all eight low-frequency out-of-plane modes, which are forbidden in non-resonant photoelectron spectroscopy. Furthermore, the breakdown of the Delta v = -1 propensity rule is observed for autodetachment from many vibrational levels of the dipole-bound state, due to anharmonic effects. In particular, we have observed intramolecular electron rescattering in a number of resonant photoelectron spectra, leading to excitations of low-frequency vibrational modes. Further theoretical study may be warranted, in light of the extensive experimental data and new observations, to provide further insight into the autodetachment dynamics and vibronic coupling in dipole-bound states, as well as electron molecule interactions. (C) 2016 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000394634700044 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27435]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Huang, DL,Liu, HT,Ning, CG,et al. Resonant photoelectron imaging of deprotonated uracil anion via vibrational levels of a dipole-bound excited state[J]. CHEMICAL PHYSICS,2017,482:374-383. |
| APA | Huang, DL,Liu, HT,Ning, CG,Dau, PD,&Wang, LS.(2017).Resonant photoelectron imaging of deprotonated uracil anion via vibrational levels of a dipole-bound excited state.CHEMICAL PHYSICS,482,374-383. |
| MLA | Huang, DL,et al."Resonant photoelectron imaging of deprotonated uracil anion via vibrational levels of a dipole-bound excited state".CHEMICAL PHYSICS 482(2017):374-383. |
入库方式： OAI收割
来源：上海应用物理研究所
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。