Exploiting cooperative binding of ion-pair to boost anion recognition in water/acetonitrile mixtures

被引：3
|
作者：
Zalubiniak, Dominika [1 ]
Kos, Joanna [1 ]
Piatek, Piotr [1 ]
机构：
[1] Univ Warsaw, Dept Chem, Pasteura 1, PL-02093 Warsaw, Poland
来源：
TETRAHEDRON | 2017年 / 73卷 / 51期
关键词：
Supramolecular chemistry; Salt receptor; Recognition in water; Binding cooperation; RECEPTOR CHEMISTRY HIGHLIGHTS; HETERODITOPIC SALT RECEPTOR; SELECTIVITY; ROTAXANE; CATIONS; HALIDE; WATER;
D O I：
10.1016/j.tet.2017.10.077
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
An L-arginine based compound was designed and prepared as a heteroditopic ion-pair receptor. The cation binding is provided by a sodium selective N-acyl-aza-18-crown-6 subunit whereas for anion complexation, urea and guanidinium groups were introduced. As shown by H-1 NMR titrations this receptor is capable of binding sodium halide ion-pairs in solutions containing up to 20% of water. The halide binding is stronger in the presence of co-coordinated sodium cation than in the presence of non coordinated TBA cation. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7190 / 7194
页数：5
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