Hg2+ sensing in aqueous solutions:: an intramolecular charge transfer emission quenching fluorescent chemosensors

被引：57

作者：

Cheung, Sin-Man ^{[1
]}

Chan, Wing-Hong ^{[1
]}

机构：

[1] Hong Kong Baptist Univ, Dept Chem, Hong Kong, Peoples R China

来源：

TETRAHEDRON | 2006年 / 62卷 / 35期

关键词：

chemosensors; mercury probe; dual fluorescence; anthracene;

D O I：

10.1016/j.tet.2006.06.035

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Compounds 4a and 4b, comprising an anthracene moiety as the fluorophore and a pair of dithiocarbamate functionalities as ligating groups, were designed as fluorescent chemosensors for Hg(II). In aqueous solvent systems, upon excitation, in addition to the normal emission bands of locally excited (LE) state of anthracene, both compounds show a prominent pH-independent intramolecular charge transfer (ICT) emissive band, which can be modulated by Hg2+ binding. The systems can be exploited to develop a fluorescent sensitive probe for Hg2+. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：8379 / 8383

页数：5

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