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通过捕获的多组件囊的新兴自组装

Yu-Dong Yang¹, Xu-Lang Chen¹, Jonathan L Sessler²

¹College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai Street, HaiDian District, Beijing 100875, P. R. China.

Journal of the American Chemical Society

|December 28, 2020

概括

一种新型的三组分系统,由环[8](1,3-(4,6-二甲基 (D-CDMB-8),冠 (Cora) 和 (I2) 组成,形成一个超分子囊. 这种自我组装的囊表现出新兴的特性,封装I2并保护其免受外部反应.

科学领域:

超分子化学
自动组装
材料科学

背景情况:

单个成分如环[8](1,3-(4,6-二甲基) (D-CDMB-8) 和冠烯 (Cora) 的相互作用有限.
设计具有新兴性质的系统需要了解组件相互作用和组装动态.

研究的目的:

研究一个由D-CDMB-8,Cora和 (I2) 组成的三元系统的自组装行为.
描述由此产生的超分子组件的结构和特性.
探索自组装系统的新兴功能.

主要方法:

在循环中结晶D-CDMB-8,Cora和I2.
使用单晶和粉末X射线衍射进行结构分析.
包括固态13C NMR,拉曼,溶液状态1H NMR和紫外线光谱的光谱表征.
在各种条件下 (高温,水溶液) 评估封装和稳定性.

主要成果:

形成一个超分子囊, ((D-CDMB-8) 3(Cora) 2) I2),其中D-CDMB-8与封装I2的Cora子单元的比例为3:2.
通过X射线衍射和光谱方法确认囊结构和含量.
封装的I2对高温和化学试剂 (,减少剂) 的稳定性已被证明.
证明囊能够从蒸汽和水溶液中捕获.

结论:

这三种组件系统表现出新兴的行为,形成一个稳定的超分子囊.
自组装的囊表现出独特的结构和功能特性,
这项工作提出了一种创新的方法,用于在分子封装和存储中创建具有新兴特征的自组合.

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