Cd(II) sensing in water using novel aromatic iminodiacetate based fluorescent chemosensors

被引：165

作者：

Gunnlaugsson, T ^{[1
]}

Lee, TC

Parkesh, R

机构：

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

[2] Royal Coll Surgeons Ireland, Dept Anat, Dublin 2, Ireland

来源：

ORGANIC LETTERS | 2003年 / 5卷 / 22期

关键词：

D O I：

10.1021/ol035484t

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHIC] Compounds 1 and 2 were designed as fluorescent chemosensors for Cd(II). For both, a selective determination of Cd(II) over Zn(II) was achieved. The fluorescence emission of both was pH-independent and switched off between pH 3-11 in 100% water. Whereas the recognition of Cd(II) at pH 7.4 gave rise to the formation of charge-transfer complexes (exciplexes) for both (lambda(max) ca. 500 and 506 nm, respectively), the recognition of Zn(II) only switched on the (monomeric) anthracene emission of 2, while for 1 it was red-shifted (lambda(max) = 468 nm).

引用

页码：4065 / 4068

页数：4

共 51 条

[1] Artificial molecular-level machines: Which energy to make them work? [J].