Sugar-poly(para-phenylene ethynylene) conjugates as sensory materials:: Efficient quenching by Hg2+ and Pb2+ ions

被引：207

作者：

Kim, IB ^{[1
]}

Erdogan, B ^{[1
]}

Wilson, JN ^{[1
]}

Bunz, UHF ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2004年 / 10卷 / 24期

关键词：

alkynes; conjugated; polymers; glucose; sensors; transition metals;

D O I：

10.1002/chem.200400788

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three polar poly(para-phenylene ethynylene)s (PPE) were synthesized by utilizing the Heck-Sonogashira protocol. Two of the PPEs carry P-glucopyranose substituents. Depending upon the linker used between the glycol units and the backbone, the fluorescence of these PPEs can be quenched by Hg2+ and Ph2+ to a varying degree. Monomeric model compounds that are substituted with only one glucose unit are not efficiently quenched. The presence of many glucose substituents in one PPE assembly led to a large increase in the binding constant to Hg2+ and quenching of the fluorescence was amplified.

引用

页码：6247 / 6254

页数：8

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