Tracking intra-molecular electron and vibrational energy redistribution by time and frequency resolved transient grating spectroscopy

被引：0
|
作者：
Zhang, Wei [1 ]
Song, Yunfei [2 ]
Liu, Xiaosong [1 ]
Yan, Lin [1 ]
Wang, Zanhao [1 ]
Yang, Yanqiang [1 ,2 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China
[2] China Acad Engn Phys, Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys, Mianyang 621900, Sichuan, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2018年 / 708卷
基金：
中国国家自然科学基金;
关键词：
Transient grating; Electron redistribution; Vibrational energy redistribution; Electron-vibration coupling; ABSORPTION; COHERENCE; DISTANCE; BAND;
D O I：
10.1016/j.cplett.2018.07.063
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Theoretical calculation results show that electron flow occurs from xanthene to phenyl ring within the Rh101(+) after its electronic transition from ground state (S-0) to first excited state (S-1). Time and frequency resolved transient grating (TG) spectroscopy is then conducted to seek the experimental evidence. Through Fourier analysis at different wavelengths of TG signal and their specific value spectra, vibrational enhancement corresponding to electron acceptor chromophore (phenyl ring) is observed. So the ultrafast vibrational energy redistribution process is detected experimentally and the direction of electron flow is confirmed.
引用
收藏
页码：81 / 86
页数：6
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