Characterizing excited-state intramolecular proton transfer in 3-hydroxyflavone with ultrafast transient infrared spectroscopy

被引：0

作者：

Winkler, Valerie S. ^{[1
]}

Fournier, Joseph A. ^{[1
]}

机构：

[1] Washington Univ St Louis, One Brookings Dr, St Louis, MO 63130 USA

来源：

CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 85期

基金：

美国国家科学基金会;

关键词：

CHARGE-TRANSFER; HYDROGEN-BONDS; DYNAMICS; ESIPT;

D O I：

10.1039/d4cc03427a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vibrational dynamics associated with excited-state intramolecular proton transfer in 3-hydroxyflavone and 3-hydroxy-2-(thiophen-2-yl)chromen-4-one are characterized with ultrafast transient infrared spectroscopy. The spectroscopic data reveal rapid (<100 fs) proton transfer dynamics in both species, followed by vibrational relaxation of the tautomer products within a few picoseconds. Coherent coupling of the shared proton to low-frequency modes along the hydrogen bond coordinate are also observed in the ground electronic states.

引用

页码：12417 / 12420

页数：4

共 31 条

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