Anion recognition as a method for templating pseudorotaxane formation

被引：76

作者：

Wisner, JA ^{[1
]}

Beer, PD ^{[1
]}

Berry, NG ^{[1
]}

Tomapatanaget, B ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Dept Chem, Oxford OX1 3QR, England

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2002年 / 99卷 / 08期

关键词：

D O I：

10.1073/pnas.062637999

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Two thread-shaped cations, pyridinium nicotinamide and imidazolium, as their chloride and hexafluorophosphate salts, were studied with regards to complexation with hydrogen-bond-donating acyclic and macrocyclic ligands. In the latter case, the cations form pseudorotaxanes templated by the chloride anion but not hexafluorophosphate. This formation is a function of the coupling of ion-pairing between the cation and chloride anion and subsequent recognition of the anion by the macrocyclic diamide, which provides the driving force for interpenetration. We propose that this anion template principle is a general method for the construction of pseudorotaxanes and could be applied to other cationic threads, anions, and macrocyclic species.

引用

页码：4983 / 4986

页数：4

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