A NBD-based selective colorimetric and fluorescent chemosensor for Hg2+

被引：40
|
作者：
Kim, Jin Hoon [1 ]
Noh, Jin Young [1 ]
Hwang, In Hong [1 ]
Lee, Jae Jun [1 ]
Kim, Cheal [1 ]
机构：
[1] Seoul Natl Univ Sci & Technol, Dept Fine Chem, Seoul 139743, South Korea
来源：
TETRAHEDRON LETTERS | 2013年 / 54卷 / 30期
基金：
新加坡国家研究基金会;
关键词：
Calorimetric; Fluorescent; Chemosensor; Naked-eye; Mercury; BEARING; 2; MERCURY; SENSOR; FLUOROIONOPHORE; PROBE; ION; RECOGNITION; DANSYL; CU2+; CHROMOIONOPHORE;
D O I：
10.1016/j.tetlet.2013.05.074
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A new NBD-based sensor bearing a dipicolylamine derivative, (2-pyridylmethyl)(2-quinolylmethyl)amine (1), was synthesized, and its chromogenic and fluorogenic behaviors toward various metal ions were investigated in methanol solution. Chemosensor 1 selectively detected Hg2+ ions through color change from yellow to colorless. In addition, chemosensor 1 exhibited highly Hg2+-selective ON-OFF fluorescence quenching behavior and was shown to discriminate various competing metal ions, particularly, such as Cu2+, Ag+, and Pb2+. The binding mode of 1-Hg2+ was found to be a 1:2 complex formation, based on Job plot and H-1 NMR titration. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4001 / 4005
页数：5
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