Selective fluorescent sensing of chloride

被引：74

作者：

Dos Santos, Cidalia M. G. ^{[1
]}

McCabe, Thomas ^{[1
]}

Gunnlaugsson, Thorfinnur ^{[1
]}

机构：

[1] Univ Dublin Trinity Coll, Sch Chem, Ctr Synth & Chem Biol, Dublin 2, Ireland

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 18期

关键词：

D O I：

10.1016/j.tetlet.2007.03.061

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The urea functionalised phenanthroline sensor 1, which was characterised by several methods, including X-ray crystallography, gives rise to large changes in the fluorescence emission spectra upon interaction with several anions such as acetate, phosphate, fluoride and chloride in CH3CN. However, only in the presence of Cl- was the emission enhanced, as for the other ions photoinduced electron transfer (PET) quenching was observed. Fitting these fluorescence changes, using non-linear regression analysis, showed that these anions bind to 1 in 1:1 (anion:sensor) stoichiometry, with the exception of Cl-, which was shown to give rise to 1:1 as well as 1:2 binding, as a result of coordination of the chloride to two equivalents of 1. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3135 / 3139

页数：5

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