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
收藏
页码：61 / 64
页数：4
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