Terphenyl based 'Turn On' fluorescent sensor for mercury

被引：50

作者：

Bhalla, Vandana ^{[1
]}

Tejpal, Ruchi ^{[1
]}

Kumar, Manoj ^{[1
]}

Puri, Rajiv Kumar ^{[1
]}

Mahajan, Rakesh K. ^{[1
]}

机构：

[1] Guru Nanak Dev Univ, UGC Ctr Adv Studies, Dept Chem, Amritsar 143005, Punjab, India

来源：

TETRAHEDRON LETTERS | 2009年 / 50卷 / 22期

关键词：

RESONANCE ENERGY-TRANSFER; EMISSION; CHEMODOSIMETER; CHEMOSENSOR; FLUOROPHORE; ION;

D O I：

10.1016/j.tetlet.2009.03.110

中图分类号：

O62 [有机化学];

学科分类号：

070303 [有机化学];

摘要：

New terphenyl-based derivative 4 with pyrene as a fluorophore has been synthesized and examined for its cation recognition abilities toward various cations by NMR and fluorescence spectroscopy. The results show that it has very high binding affinity (log beta = 5.12) and selectivity for mercury. A fluorescence enhancement of 375% was observed for the 4-Hg2+ system in THF. A Hg2+ selective electrode (ISE) was also formed which showed excellent selectivity over all the Other cations rested. The lower limit of detection is 2.1 x 10(-6) M. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2649 / 2652

页数：4

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