Guest and subunit exchange in self-assembled ionophores

被引：22

作者：

Cai, MM

Sidorov, V

Lam, YF

Flowers, RA

Davis, JT ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

[2] Univ Toledo, Dept Chem, Toledo, OH 43606 USA

来源：

ORGANIC LETTERS | 2000年 / 2卷 / 12期

关键词：

D O I：

10.1021/ol0058442

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] Self-assembled ionophores, formed by hydrogen bonding of isoG 1 around a cation, are dynamic structures. Multinuclear NMR spectroscopy in CD3CN-CDCl3 showed that cation exchange is >10(4) faster than exchange of isoG 1 ligand in (isoG 1)(10)-Cs+ Ph4B-. The cationic guest also affected the kinetic stability of the complex. 2D-EXSY NMR experiments in CDCl3 showed that ligand exchange was 2 orders of magnitude faster for the Li+-decamer than for the Cs+-decamer.

引用

页码：1665 / 1668

页数：4

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