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

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 len...

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Bibliographic Details
Published inChinese chemical letters Vol. 24; no. 8; pp. 688 - 690
Main Authors Dong, Zhi-Yun, Zhang, Da-Wei, Jiang, Xiao-Zhi, Li, Hui, Gao, Guo-Hua
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2013
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China%School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University, Shanghai 200240, China
Subjects
Colorimetric receptor
Dicarboxylate
Urea
Viologen
二羧酸
受体
尿素
检测
比色法
阳离子自由基
阴离子
静电相互作用
Colorimetric receptor
Urea
Viologen
Dicarboxylate
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Summary: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 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.
Bibliography:Colorimetric receptor Urea Viologen Dicarboxylate
11-2710/O6
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 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.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2013.04.048