EXCITED-STATE PROTON-TRANSFER SPECTROSCOPY OF 3-HYDROXYFLAVONE AND QUERCETIN

被引：601

作者：

SENGUPTA, PK ^{[1
]}

KASHA, M ^{[1
]}

机构：

[1] FLORIDA STATE UNIV,INST MOLEC BIOPHYS,TALLAHASSEE,FL 32306

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 68卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(79)87221-8

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：

The yellow-green luminescence of 3-hydroxyflavone and quercetin at room temperature in solution arises from a tautomer of the molecules produced by excited state proton-transfer across a barrier in the double-minimum hydrogen-bonding potential. At 77 K in 2-methylbutane rigid matrix, a normal UV-violet fluorescence is observed in correspondence with the UV absorption. Excitation spectra and deuteration effects confirm the mechanism. © 1979.

引用

页码：382 / 385

页数：4

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