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

页码：13162 / 13166

页数：5

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