HOST-GUEST COMPLEXES OF CUCURBITURIL WITH THE 4-METHYLBENZYLAMMONIUM ION, ALKALI-METAL CATIONS AND NH4+

被引：127

作者：

HOFFMANN, R

KNOCHE, W

FENN, C

BUSCHMANN, HJ

机构：

[1] UNIV BIELEFELD,FAK CHEM,D-33501 BIELEFELD,GERMANY

[2] DEUTSCH TEXT FORSCH ZENTRUM NORD WEST,D-47798 KREFELD,GERMANY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1994年 / 90卷 / 11期

关键词：

D O I：

10.1039/ft9949001507

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Kinetic measurements indicate the existence of two different complexes of cucurbituril with 4-methylbenzyl-ammonium ions: (i) an association complex, where the ammonium group binds to one of the polar portals of cucurbituril and the hydrophobic part extends into the solvent, and (ii) an inclusion complex, where the hydrophobic part extends into the cavity of cucurbituril. This complex is used as an indicator for the binding of simple monovalent cations to cucurbituril. Stability constants are reported for the 1:1 complexes of cucurbituril with different cations.

引用

页码：1507 / 1511

页数：5