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Issue 43, 2010
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Improved complexation of paraquat derivatives by the formation of crown ether-based cryptands

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Abstract

Self-assembly allows the construction of advanced molecular or supramolecular systems from small building blocks. Host–guest recognition, for its self-selectivity, environmental responsiveness and convenient application to complex molecular devices, plays a significant role in self-assembled systems. During this process, the association constant between the host and guest is an important standard to identify the properties of the systems. In order to prepare mechanically interlocked structures and large supramolecular systems efficiently from small molecules based on a host–guest recognition motif, it is necessary to increase host–guest association constants. Crown ether-based cryptands have been designed and prepared to improve the binding of paraquat derivatives. This feature article aims to describe the design and syntheses of crown ether-based cryptand hosts for paraquat derivatives and the application of the cryptand/paraquat recognition motif in the fabrication of threaded structures, molecular switches and supramolecular polymers.

Graphical abstract: Improved complexation of paraquat derivatives by the formation of crown ether-based cryptands

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Article information


Submitted
21 Jul 2010
Accepted
17 Aug 2010
First published
10 Sep 2010

Chem. Commun., 2010,46, 8131-8141
Article type
Feature Article

Improved complexation of paraquat derivatives by the formation of crown ether-based cryptands

M. Zhang, K. Zhu and F. Huang, Chem. Commun., 2010, 46, 8131 DOI: 10.1039/C0CC02717K

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