| Thiourea Based Tweezer Anion Receptors for Selective Sensing of Fluoride Ions |
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| 引用本文： | 张有明 曹成 魏薇 魏太保. Thiourea Based Tweezer Anion Receptors for Selective Sensing of Fluoride Ions[J]. 中国化学, 2007, 25(5): 709-713. DOI: 10.1002/cjoc.200790133 |
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| 作者姓名： | 张有明 曹成 魏薇 魏太保 |
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| 作者单位： | Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 20671077）, the Key Scientific and Technical Research Project of Ministry of Education of China （No. 205161）, the Youth Foundation of Gansu Province （No. 3YS051-A25-010）, the Natural Science Foundation of Gansu Province in China （No. 3ZS061-A25-027） and the Scientific Research Fund of Education Department of Gansu Province （No. 0601-24）. |
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| 摘 要： | Three 3,3＇-di（4-substituted-phenyl）-1,1＇-isophthaloylbis（thiourea） compounds were designed as novel neutral anion receptors, and synthesized by simple steps in good yields. The single crystal structure of receptor 1 shows that a solvent molecule was captured by the host molecule through intermolecular hydrogen bonding. Moreover, it was self-assembled as a supramolecular system for the presence of abundant inter- and intramolecular hydrogen bonding and π-π interactions between phenyl groups. Their application as anion receptors has been examined by UV-Vis and ^1H NMR spectroscopy, showing that they had a higher selectivity for fluoride than other halides. The host and guest formed a 1 ： 1 stoichiometry complex through hydrogen bonding interactions in the first step, then following a process of deprotonation in presence of an excess of F^- in the solvent of DMF.
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| 关 键 词： | 硫脲 钳型阴离子受体 合成 氟化物离子 选择性识别 |
| 修稿时间： | 2006-03-10 |
Thiourea Based Tweezer Anion Receptors for Selective Sensing of Fluoride Ions |
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| ZHANG, You-Ming CAO, Cheng WEI, Wei WEI, Tai-Bao. Thiourea Based Tweezer Anion Receptors for Selective Sensing of Fluoride Ions[J]. Chinese Journal of Chemistry, 2007, 25(5): 709-713. DOI: 10.1002/cjoc.200790133 |
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| Authors: | ZHANG You-Ming CAO Cheng WEI Wei WEI Tai-Bao |
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| Affiliation: | Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China |
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| Abstract: | Three 3,3′‐di(4‐substituted‐phenyl)‐1,1′‐isophthaloylbis(thiourea) compounds were designed as novel neutral anion receptors, and synthesized by simple steps in good yields. The single crystal structure of receptor 1 shows that a solvent molecule was captured by the host molecule through intermolecular hydrogen bonding. Moreover, it was self‐assembled as a supramolecular system for the presence of abundant inter‐ and intramolecular hydrogen bonding and π‐π interactions between phenyl groups. Their application as anion receptors has been examined by UV‐Vis and 1H NMR spectroscopy, showing that they had a higher selectivity for fluoride than other halides. The host and guest formed a 1:1 stoichiometry complex through hydrogen bonding interactions in the first step, then following a process of deprotonation in presence of an excess of F? in the solvent of DMF. |
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| Keywords: | anion recognition hydrogen bond molecular tweezer single crystal |
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