A selective fluorescent sensor for Zn2+ based on aggregation-induced emission (AIE) activity and metal chelating ability of bis(2-pyridyl)-diphenylethylene

被引：36
作者：
Gabr, Moustafa T. [1 ]
Pigge, F. Christopher [1 ]
机构：
[1] Univ Iowa, Dept Chem, Iowa City, IA 52242 USA
来源：
DALTON TRANSACTIONS | 2016年 / 45卷 / 36期
关键词：
SUBSTITUTED TETRAPHENYLETHENES; RESTRICTION; PYRIDINE; ZN(II); PROBE;
D O I：
10.1039/c6dt02657e
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Polypyridyl ethylenes have been prepared as heterocyclic analogues of tetraphenylethylene. In addition to conventional AIE effects, a derivative possessing a 1,1-bis(2-pyridyl) ethylene fragment displays Zn2+-selective enhanced fluorescence in aqueous solution, in contrast to the behavior of isomeric bis(3- and 4-pyridyl) ethylenes. The Zn2+-sensing capability of this material is attributed to formation of chelated Zn2+-bis(pyridyl) complexes and is supported by the X-ray crystal structure of a bis(2-pyridyl) ethylene-Zn(OAc)(2) complex.
引用
收藏
页码：14039 / 14043
页数：5
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