Properties and characteristics of squarylium-based chemosensors for Hg2+

被引：4

作者：

Lee, Eun-Mi ^{[1
]}

Gwon, Seon-Yeong ^{[2
]}

Son, Young-A ^{[1
]}

Kim, Sung-Hoon ^{[2
,3
]}

机构：

[1] Chungnam Natl Univ, FTIT Dept Adv Organ Mat Engn BK21, Taejon 305764, South Korea

[2] Kyungpook Natl Univ, Dept Adv Organ Mat Sci & Engn, Taegu 702701, South Korea

[3] Zhanjiang Normal Univ, Sch Chem Sci & Technol, Zhanjiang 524048, Peoples R China

来源：

SUPRAMOLECULAR CHEMISTRY | 2013年 / 25卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

cation sensing; chemosensor; squarylium dye; colorimetric; Hg2+; LUMINESCENT CHEMOSENSORS; DYES; SENSORS; MOLECULES; CHEMISTRY; SYSTEMS; MERCURY; CATION;

D O I：

10.1080/10610278.2012.752086

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A chemosensor based on symmetrical squarylium (SQ) dye, 2,4-bis((3,3-dimethylindolin-2-ylidene)methyl)cyclobutane-1,3-bis(olate), was synthesised and its cation-sensing properties in acetonitrile were investigated by UVvis spectroscopy. Upon the addition of Hg2+, the solution of SQ dye showed clear colour change. The absorption studies also indicate a higher affinity of Hg2+ towards the formation of 2:1 complexes, which is in good agreement with the experimental results. The selective detection of Hg2+ of the symmetrical-SQ unit gave rise to a significant absorption decrease at ?max 650 in acetonitrile solution.

引用

页码：61 / 64

页数：4

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