A Tetraphenylethene-Based Rhodamine Hydrazone Chemosensor for Colorimetric and Reversible Detection of Cu2+

被引：21

作者：

Yang, Yang ^{[1
]}

Gao, Chao-Ying ^{[1
,2
]}

Li, Tingting ^{[1
]}

Chen, Jing ^{[1
]}

机构：

[1] Inner Mongolia Univ Nationalities, Coll Chem & Chem Engn, 536 Huolinhe St, Tongliao, Inner Mongolia, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, 5625 Renmin St, Changchun 130022, Jilin, Peoples R China

来源：

CHEMISTRYSELECT | 2016年 / 1卷 / 15期

关键词：

chemosensor; colorimetric; Cu2+; rhodamine; tetraphenylethene; FLUORESCENT CHEMOSENSOR; OXIDATIVE STRESS; AQUEOUS-MEDIA; COPPER-ION; PROBE; ALZHEIMERS; CU(II);

D O I：

10.1002/slct.201600883

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A tetraphenylethene (TPE) based rhodamine hydrazone compoundRbTS has been synthesized by condensation of 2-hydroxy-5-(1,2,2-triphenylvinyl) benzaldehyde and rhodamine B hydrazide. It exhibitsaggregation-induced emission(AIE) behavior when the water fractionis more than 40%. In Tris- HCl buffered EtOH-H2O solution (1:2, v:v), the chemosensor RbTS shows remarkably enhanced absorbance intensity and visual color changes from colorless to purple after the addition of Cu2+. The response is based on the spirolactam opening process and formation of a 1:1 metal-ligand complex. The absorbance signals of RbTS can be restored by addition of EDTA into the solutions of RbTS-Cu2+, which demonstrated that the binding of RbTS and Cu2+ is chemically reversible. The detection limit of RbTS for Cu2+ is below 10(-6) M in the neutral aqueous system. The results indicate that RbTScould be used as a suitable "naked eye" and reversible indicator for Cu2+ ions.

引用

页码：4577 / 4581

页数：5

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