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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (16): 1713-1717. 上一篇    下一篇

研究论文

芳酰基硫脲受体的合成及对阴离子识别研究

史达清*,1,2, 王海营2, 杨芳2, 李小跃2   

  1. (1苏州大学化学化工学院 苏州 215123)
    (2徐州师范大学化学系 徐州 221116)
  • 投稿日期:2006-11-27 修回日期:2007-01-15 发布日期:2007-08-28
  • 通讯作者: 史达清

Synthesis of Anion Receptors Based on Aroylthiourea and Their Anion Recognition

SHI Da-Qing*,1,2; WANG Hai-Ying; YANG Fang; LI Xiao-Yue   

  1. (1 College of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123)
    (2 Department of Chemistry, Xuzhou Normal University, Xuzhou 221116)
  • Received:2006-11-27 Revised:2007-01-15 Published:2007-08-28
  • Contact: SHI Da-Qing

PDF

820

被引次数

75 | 16

设计合成了3种芳酰基硫脲受体分子. 利用紫外-可见吸收光谱考察了其与F－, Cl－, Br－, AcO－, HSO4－, H2PO4－等阴离子的作用. 结果表明该类受体分子与阴离子形成氢键配合物. 加入F－, AcO－时, 溶液立刻由无色变为黄色, 而加入其它阴离子则无变化, 从而实现对这两种阴离子的裸眼识别. 结果表明受体分子与阴离子间形成1∶1型的配合物. 1H NMR滴定及质子溶剂效应为受体分子与阴离子间的氢键作用本质提供了直接依据.

关键词: 芳酰基硫脲, 阴离子识别, 氢键作用

Three new aroylthiourea receptors were synthesized. The binding properties of the receptors with anions such as F－, Cl－, Br－, AcO－, HSO4－ and H2PO4－ were examined by UV-Vis spectroscopy methods. The results showed that hydrogen-bonding complexes were formed between receptors and anions. The color was changed from colorless to yellow upon addition of F－ and AcO－ to the solution of the three receptors, which was perceptible to recognition by naked eye. However, no obvious color changes were observed on addition of the other anions. The results indicated that a 1∶1 stoichiometry complex was formed between compounds and anions, while 1H NMR titrations and solvate effect confirmed hydrogen-bonding interaction between the receptors and anions.

Key words: aroylthiourea, anion recognition, hydrogen-bonding interaction