Tuning the photoinduced electron transfer in near-infrared heptamethine cyanine dyes

被引：38

作者：

Song, FL ^{[1
]}

Peng, XJ ^{[1
]}

Lu, EH ^{[1
]}

Wang, YN ^{[1
]}

Zhou, W ^{[1
]}

Fan, JL ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China

来源：

TETRAHEDRON LETTERS | 2005年 / 46卷 / 28期

基金：

中国国家自然科学基金;

关键词：

heptamethine cyanine dyes; fluorescence sensors; near-infrared; photoinduced electron transfer;

D O I：

10.1016/j.tetlet.2005.04.089

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An efficient photoinduced electron transfer (PET) system in near-infrared region was described. The PET in heptamethine cyanine dyes was tuned by changing the electron-donating ability of the substituent at the central position of the polymehine chain. 4-Aminophenylthio-substitution led to an efficient PET and the lowest fluorescence quantum yield. The acetylation, protonation or transition metal cation coordination of the amino group could recover fluorescence greatly via suppressing the PET. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：4817 / 4820

页数：4

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