Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate

doi:10.1063/1.5115307

	Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate
	Ling, Fengzi 2; Liu, Dejun 2; Li, Shuai 1; Li, Wei 2; Zhang, Bing 1; Wang, Pengfei 2
刊名	JOURNAL OF CHEMICAL PHYSICS
	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.
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关键词	RESOLVED PHOTOELECTRON-SPECTROSCOPY ; INITIO MOLECULAR-DYNAMICS ; ACID ; FLUORESCENCE ; MECHANISM
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000484670700018
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
内容类型	期刊论文
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.