Strong solvatochromic fluorescence from the intramolecular charge-transfer state created by excited-state intramolecular proton transfer

被引：306
|
作者：
Seo, J [1 ]
Kim, S [1 ]
Park, SY [1 ]
机构：
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 36期
关键词：
D O I：
10.1021/ja047815i
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, we report a peculiar positive solvatochromism in the keto emission of the acceptor-substituted 2-(2′-hydroxyphenyl)benzoxazoles (HBO), which originates from the excited-state intramolecular proton transfer (ESIPT) followed by the intramolecular charge transfer (ICT) and subsequent solvent relaxation. This transient evolution of enhanced ICT characteristic triggered by ESIPT, which is first observed in this work, is responsible for the novel concept of a fast hyperpolarizability modulator as well as the unique solvatochromic behavior. Copyright © 2003 American Chemical Society.
引用
收藏
页码：11154 / 11155
页数：2
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