A new quinoline-based chemosensor in ratiometric sensing of Hg2+ ions

被引：19

作者：

Ghosh, Kumaresh ^{[1
]}

Tarafdar, Debojyoti ^{[1
]}

机构：

[1] Univ Kalyani, Dept Chem, Kalyani 741235, Nadia, India

来源：

SUPRAMOLECULAR CHEMISTRY | 2013年 / 25卷 / 03期

关键词：

mercury recognition; zinc and cadmium sensing; quinoline-based receptor; ratiometric fluorescence; ratiometric absorbance; RESONANCE ENERGY-TRANSFER; TURN-ON PROBE; FLUORESCENT CHEMOSENSOR; AQUEOUS-SOLUTION; SELECTIVE DETECTION; RHODAMINE; HG(II); RECOGNITION; MOLECULE; RECEPTOR;

D O I：

10.1080/10610278.2012.733818

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new quinoline-based chemosensor 1 has been designed and synthesised. Its metal ion-binding properties have been documented in organic and aqueous organic solvents. While chemosensor 1 recognises Hg2+ ions (K a=2.15x104M1) by exhibiting ratiometric change in emission in CHCl3/CH3OH (1:1, v/v), under similar condition both Zn2+ and Cd2+ ions are sensed by significant non-ratiometric increase in emission with measurable red shift. In DMSO/H2O (5:95, v/v), the sensor 1 exhibits a greater selectivity towards Hg2+ ions (K a=9.20x103M1) over the other metal ions examined.

引用

页码：127 / 132

页数：6

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