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Multisensing Anion Recognition with thioure based Receptor functionalized with tetrathiafulvalene Unit
Su Chang #,Gu Liying,Yin Bingzhu *
Key Laboratory of Organism Functional Factors of the Changbai Mountain, Yanbian University, Ministry of Education, Yanji 133002, P.R. China
*Correspondence author
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Funding: 国家自然科学基金,教育部博士点基金（No.20662010,20060184001）
Opened online:17 December 2008
Accepted by: none
Citation: Su Chang,Gu Liying,Yin Bingzhu.Multisensing Anion Recognition with thioure based Receptor functionalized with tetrathiafulvalene Unit[OL]. [17 December 2008] http://en.paper.edu.cn/en_releasepaper/content/26675
 
 
A series thiourea/urea-based anion receptors functionalized with tetrathiafulvalene (1-4) were prepared. Among them, 4 displays the high sensitive multisensing for acetate anion over various anions in acetonitrile with dramatic changes in UV-vis spectra , cyclic voltammogram and 1H NMR spectra. Conformation change induced by anion complexing of 4 caused the improvement of ICT channel to enhance the charge transfer not noly from thiourea moiety but also from TTF unit to electron-defect benzene ring. TTF unit plays a synergic charge transfer role for trifluoromethyl group in the ICT process. DFT calculation supported the hypothesis of conformational change and ICT channel improvement.
Keywords:tetrathiafulvalene;anion receptor;thiourea;multisensing;recognition
 
 
 

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