A thermally stable pH-responsive “supramolecular buckle” based on the encapsulation of 4-(4-aminophenyl)-N-methylpyridinium by cucurbit[8]uril

文献情報

出版日 2015-07-06

DOI 10.1039/C5QO00168D

インパクトファクター 5.281

著者

Tian-You Zhou, Qiao-Yan Qi, Ying Zhang, Xiao-Na Xu, Xin Zhao

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要旨

Supramolecular building blocks that can respond to external stimuli are the basis for the fabrication of responsive materials. However, those that can be used in aqueous media and at elevated temperatures are extremely limited. In this work, a cucurbit[8]uril(CB[8])-based host–guest system has been developed. It exhibits excellent response to the change of pH by forming a thermally stable 1 : 2 host–guest complex under neutral conditions and transforming into a 1 : 1 complex by releasing one guest molecule in the presence of an acid. This transformation makes this system serve as a useful “supramolecular buckle”, which can fasten and unfasten two components. These features endow it with great potential in fabricating pH-responsive materials in aqueous media over a wide temperature range.

掲載誌

Organic Chemistry Frontiers

CiteScore: 7.8

自己引用率: 8.7%

年間論文数: 724

Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry