A new pyrenyl-appended triazole for fluorescent recognition of Hg2+ ion in aqueous solution

被引：32
|
作者：
Cao, Qian-Yong [1 ]
Han, Yuan-Ming [1 ]
Wang, Hong-Ming [1 ]
Xie, Yu [2 ]
机构：
[1] Nanchang Univ, Dept Chem, Nanchang 330031, Peoples R China
[2] Nanchang Hangkong Univ, Coll Environm & Chem Engn, Nanchang 330063, Peoples R China
来源：
DYES AND PIGMENTS | 2013年 / 99卷 / 03期
关键词：
Fluorescence; Chemosensor; Pyrene; Triazole; Sulfonamide; Mercury; MERCURY; EXPOSURE; RECEPTOR; SENSOR; CHAIN;
D O I：
10.1016/j.dyepig.2013.07.005
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new pyrenyl-appended triazole for fluorescent sensing of Hg2+, I, has been synthesized and characterized. Upon addition of Hg2+ to 1 in the acetonitrile aqueous solution, more than 80% of the initial fluorescence intensity of 1 was quenched, which allowed a selective and sensitive fluorescent detection of Hg(II) without any interference from other metal ions. H-1 NMR analysis revealed that the two sulfonamide and triazole groups of 1 played a critical role in the interactions with Hg2+ ion, which can be further proved by the density functional theory based theoretical calculation. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：798 / 802
页数：5
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