A Zn(II) ion selective fluorescence sensor that is not affected by Cd(II)

被引：40

作者：

Ngwendson, Julius N. ^{[1
]}

Banerjee, Anamitro ^{[1
]}

机构：

[1] Univ N Dakota, Dept Chem, Grand Forks, ND 58202 USA

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 41期

基金：

美国国家科学基金会;

关键词：

zinc sensors; fluorescence sensors;

D O I：

10.1016/j.tetlet.2007.08.040

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Comparison of sensors sodium-2,6-diamino-(N,N,N',N'-tetraacetate)-4-methylanisole 1 and sodium-2,6-diamino(N,N,N'-triacetate) -4-methylanisole 2 reveal that the loss of an acetyl group in 2 leads to a more selective Zn(II) induced fluorescence enhancement and shows no response to any other metal ions including Cd(II). Structural modifications and AM1 calculations indicate that the sensor uses the three acetyl groups and the 3 degrees amino nitrogen for binding the metal ion. AMI calculations imply a trigonal bipyramidal coordination for Zn(II) with the solvent molecule occupying one of the axial positions. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：7316 / 7319

页数：4

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