Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate
文献类型：期刊论文
| 作者 | Ling, Fengzi2; Liu, Dejun2; Li, Shuai1; Li, Wei2; Zhang, Bing1; Wang, Pengfei2 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
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| 出版日期 | 2019-09-07 |
| 卷号 | 151期号:9页码:7 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.5115307 |
| 英文摘要 | The excited-state intramolecular proton transfer (ESIPT) process and subsequent electronic relaxation dynamics in methyl salicylate have been investigated using femtosecond time-resolved ion yield spectroscopy combined with time-resolved photoelectron imaging. Excitation with a tunable pump pulse populates the keto tautomer in the first excited electronic state S-1(pi pi(*)). As a hydrogen atom transfers from the phenolic group to the carbonyl group within 100 fs, the molecular geometry changes gradually, leading to a variation in the electronic photoionization channel. By virtue of the accidental resonance with some intermediate Rydberg states, the time-dependent photoelectron spectra provide a direct mapping of the ESIPT reaction from the initially populated keto tautomer to the proton-transferred enol tautomer. Subsequently, the population around the enol configuration undergoes intramolecular vibrational redistribution on a subpicosecond time scale, followed by internal conversion to the ground state with a wavelength-dependent lifetime in the picosecond range. Furthermore, the excitation energies of several Rydberg states in methyl salicylate are determined experimentally. |
| WOS关键词 | RESOLVED PHOTOELECTRON-SPECTROSCOPY ; INITIO MOLECULAR-DYNAMICS ; ACID ; FLUORESCENCE ; MECHANISM |
| 资助项目 | Shenzhen Peacock Talent Program ; National Key R&D Program of China[2016YFE0126500] ; National Natural Science Foundation of China[61575050] ; National Natural Science Foundation of China[21773299] ; National Natural Science Foundation of China[11574351] ; National Natural Science Foundation of China[21573279] ; National Natural Science Foundation of China[11774385] ; National Natural Science Foundation of China[21503270] ; National Natural Science Foundation of China[11674355] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000484670700018 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | Shenzhen Peacock Talent Program ; Shenzhen Peacock Talent Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shenzhen Peacock Talent Program ; Shenzhen Peacock Talent Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shenzhen Peacock Talent Program ; Shenzhen Peacock Talent Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shenzhen Peacock Talent Program ; Shenzhen Peacock Talent Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/14884]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 通讯作者 | Zhang, Bing; Wang, Pengfei |
| 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.Shenzhen Univ, Coll Phys & Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ling, Fengzi,Liu, Dejun,Li, Shuai,et al. Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate[J]. JOURNAL OF CHEMICAL PHYSICS,2019,151(9):7. |
| APA | Ling, Fengzi,Liu, Dejun,Li, Shuai,Li, Wei,Zhang, Bing,&Wang, Pengfei.(2019).Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate.JOURNAL OF CHEMICAL PHYSICS,151(9),7. |
| MLA | Ling, Fengzi,et al."Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate".JOURNAL OF CHEMICAL PHYSICS 151.9(2019):7. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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