A novel fluorescent photoinduced electron transfer (PET) sensor for lithium

被引：80

作者：

Gunnlaugsson, T ^{[1
]}

Bichell, B ^{[1
]}

Nolan, C ^{[1
]}

机构：

[1] Univ Dublin Trinity Coll, Dept Chem, Dublin 2, Ireland

来源：

TETRAHEDRON LETTERS | 2002年 / 43卷 / 28期

关键词：

D O I：

10.1016/S0040-4039(02)00895-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The chiral diaza-9-crown-3 derivative 1 is the first example of a fluorescent PET chemosensor designed specifically for detecting lithium ions (Li+). 1 shows 'off-on' switching of fluorescence when treated with various lithium salts in organic solvents such as CH3CN, with binding constant log beta=5.4, at the same time as discriminating against a variety of group I and 11 metal ions. In water. the emission is quenched by anions dire to the heavy-atom effect. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：4989 / 4992

页数：4

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