A viologen-urea-based anion receptor: Colorimetric sensing of dicarboxylate anions

被引：10
|
作者：
Dong, Zhi-Yun [1 ]
Zhang, Da-Wei [1 ]
Jiang, Xiao-Zhi [1 ]
Li, Hui [2 ]
Gao, Guo-Hua [1 ]
机构：
[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2013年 / 24卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Colorimetric receptor; Urea; Viologen; Dicarboxylate; CHARGE-TRANSFER COMPLEXES; METHYL VIOLOGEN; ELECTRON-TRANSFER; SENSOR;
D O I：
10.1016/j.cclet.2013.04.048
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Compound 1 bearing urea and viologen groups has been designed and synthesized. It could be used as a colorimetric receptor for dicarboxylate anions due to the significant color changes of the solution upon the addition of dicarboxylates. More importantly, the color changes were related to the chain lengths of the dicarboxylates tested. UV-vis, H-1 NMR and HRMS studies demonstrated that receptor 1 utilized hydrogen bonds and electrostatic interactions to form 1:1 stoichiometry complexes with these anions. In addition, the generation of cation radical 1(+) during the complexation process was also detected by EPR. (c) 2013 Guo-Hua Gao and Hui Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
引用
收藏
页码：688 / 690
页数：3
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