Cucurbit[6]uril-based supramolecular frameworks assembled via the outer surface interaction of cucur

• 作 者: Chao Liu Ruihan Gao Yunqian Zhang Qianjiang Zhu Zhu Tao
• 机 构: Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University,Gu
• 出 处: 中国化学快报（英文版）
• 发表日期: 2021年1期
• 关键词: Cucurbit[6]uril [CdCl4]2 anion Structure directing agent Outer surface interacti

Curcurbit[n]uril (Q[n])-based supramolecular frameworks (QSFs) constructed from the outer surface interaction of Q[n]s (OSIQ) have the characteristic of simplicity, diversity and modulability. Their simplicity is reflected in their simple composition and preparation methods used for QSFs. The diversity of supramolecular organic frameworks (SOFs) is reflected in the synthesis methods and structural characteristics of the as-obtained QSFs, as well as the variety of structural directing agents and basic building blocks used to prepare QSFs. The modulability is reflected by the controllable channel size in the QSFs, which can be adjusted using different sizes of Q[n]s. In this work, the first reported cucurbituril Q[6] was selected as the basic building block and three Q[6]-based supramolecular frameworks were obtained from aqueous HCl solutions in the presence of [CdCl4]2 respectively. The OSIQs are the main driving forces for the formation of these frameworks. This study shows the diversity of the QSFs.