New host molecules with imidazoliums as functional arms: Syntheses and anion recognition

Yi Yuan,ZongLin Jiang,Ge Gao,Guolin Zhang,Jingsong You,RuGang Xie

CHINESE JOURNAL OF CHEMISTRY（2002）

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摘要

The bridged tri-imidazoliums 3 . 3X(-) -5 . 3X(-) ( X - = PF6-, Br-, I-) and bis-imidazoliums 6 . 2PF(6)(-) were synthesized by N-quaternization of imidazole derivative 1 in acetonitrile under reflux. UV spectroscopic titration experiments showed that the halide salts and hexafluorophosphate salts of these imidazoliums exhibited good recognition toward anions in water and in acetonitrile, respectively.

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关键词

anion recognition,imidazolium,synthesis,UV titration,supramolecular chemistry

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