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Supramolecular Polymerization of a Pillar[5]arene Induced by a Symmetric Biaryl Sulfonate with Dual Binding Sites

Supramolecular Polymerization of a Pillar[5]arene Induced by a Symmetric Biaryl Sulfonate with... Macrocycle‐based supramolecular polymers have attracted more interest in recent years and found many practical applications with controlled shape and unique physical and chemical properties. In this work, a binary supramolecular polymer is prepared in water by the strong host‐guest interactions between a cationic pillar[5]arene and a symmetric sulfonate with dual binding sites. Isothermal titration calorimetry measurements show that the binding process of host‐guest complexation is governed in a thermodynamically favorable way with a high stability constant of up to 107 m−1 order of magnitude. Moreover, spectroscopic and microscopic investigations jointly demonstrate that the resulting stable polymer is multistimuli responsive towards temperature and competitive metal coordination. We anticipate that our obtained multistimuli‐responsive supramolecular polymer may offer a new way in the construction of more functionalized pillararene‐based nanoassemblies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal of Organic Chemistry Wiley

Supramolecular Polymerization of a Pillar[5]arene Induced by a Symmetric Biaryl Sulfonate with Dual Binding Sites

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References (48)

Publisher
Wiley
Copyright
© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
2193-5807
eISSN
2193-5815
DOI
10.1002/ajoc.201500448
Publisher site
See Article on Publisher Site

Abstract

Macrocycle‐based supramolecular polymers have attracted more interest in recent years and found many practical applications with controlled shape and unique physical and chemical properties. In this work, a binary supramolecular polymer is prepared in water by the strong host‐guest interactions between a cationic pillar[5]arene and a symmetric sulfonate with dual binding sites. Isothermal titration calorimetry measurements show that the binding process of host‐guest complexation is governed in a thermodynamically favorable way with a high stability constant of up to 107 m−1 order of magnitude. Moreover, spectroscopic and microscopic investigations jointly demonstrate that the resulting stable polymer is multistimuli responsive towards temperature and competitive metal coordination. We anticipate that our obtained multistimuli‐responsive supramolecular polymer may offer a new way in the construction of more functionalized pillararene‐based nanoassemblies.

Journal

Asian Journal of Organic Chemistry – Wiley

Published: Mar 1, 2016

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