A coumarin-derived fluorescence chemosensors selective for copper(II)

被引：46

作者：

Sheng, Jiang Run ^{[1
]}

Feng, Feng ^{[1
,2
]}

Qiang, You ^{[1
]}

Liang, Fu Guo ^{[1
]}

Sen, Lin ^{[1
]}

Wei, Fu-Hong ^{[3
]}

机构：

[1] Nanchang Univ, Dept Chem, Nanchang 330047, Peoples R China

[2] Shanxi Datong Univ, Sch Chem, Datong, Peoples R China

[3] Jiangxi Normal Univ, Dept Chem, Nanchang, Peoples R China

来源：

ANALYTICAL LETTERS | 2008年 / 41卷 / 12期

关键词：

coumarin; fluorescence sensors; imine;

D O I：

10.1080/00032710802237673

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two different coumarin derivatives have been connected via animine linkage to obtain a new fluorescence signaling system. The coumarin derivative (L) containing a C=N group was designed as an example for illustration. The free ligand L is almost nonfluorescent due to the isomerization of C=N double bond in the excited state. However, in the presence of a Cu(II) ion, this isomerization is stopped because of bonding to the metal ion, resulting in a high-intensity (400-fold) emission. In this way, we designed a new compound for copper-selective and ratiometric chemosensors.

引用

页码：2203 / 2213

页数：11

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