Crown-6-calix[4]arene-capped calix[4]pyrrole: An ion-pair receptor for solvent-separated CsF ions

被引：147
|
作者：
Sessler, Jonathan L. [1 ]
Kim, Sung Kuk [1 ]
Gross, Dustin E. [1 ]
Lee, Chang-Hee [2 ]
Kim, Jong Seung [3 ]
Lynch, Vincent M. [1 ]
机构：
[1] Univ Texas Austin, Dept Chem & Biochem, Austin, TX 78712 USA
[2] Kangwon Natl Univ, Dept Chem, Chunchon 200701, South Korea
[3] Korea Univ, Dept Chem, Seoul 136701, South Korea
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 39期
基金：
美国国家卫生研究院;
关键词：
D O I：
10.1021/ja804976f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An ion-pair receptor, 1, containing both cation- and anion-recognizing sites, has been synthesized and characterized. Single-crystal X-ray diffraction structural studies and H-1 NMR spectroscopic analyses confirmed that 1 forms stable 1:1 complexes with CsF in solution and in the solid state in spite of the large separation enforced between the receptor-bound anion and cation. In 9:1 CDCl3/CD3OD, binding of fluoride anion within the calix[4]pyrrole core of 1 was not observed in the absence of a cobound cesium cation; however, it was seen in this solvent mixture under conditions where a Cs+ cation was bound to the crown ether-strapped calix[4]arene subunit.
引用
收藏
页码：13162 / 13166
页数：5
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