通过共价修饰来调节α-环极德和安德森型多氧金属酸盐的超分子组合
Chun-Yan Liu1, Yun-Jing Mu1, Wu-Ji Chen1
1State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|November 11, 2024
概括
聚氧甲酸盐 (POM) 和α-cyclodextrins (α-CDs) 的新型超分子复合体形成了伪罗他森结构. 这些POM/α-CD复合体在水溶液中表现出稳定的性,这是POM/CD组件的新发现.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 聚氧甲酸盐 (POMs) 是具有可调节性质的多功能无机集群.
- 循环德克斯特林 (CDs) 是一种循环性寡糖,能够形成包容复合体.
- 之前的POM/CD组件主要用 γ-CDs 形成聚-罗他森结构.
研究的目的:
- 合成和表征联修饰的安德森型POMs和α-CDs的新型超分子复合体.
- 调查POM修饰对超分子组合的影响.
- 探索这些新的POM/α-CD复合体在溶液中的结构性和奇拉性质.
主要方法:
- 单晶X射线衍射用于固态结构的确定.
- 使用1H DOSY NMR,2D NOESY 1H NMR,ITC和ESI-TOF-MS进行溶液状态表征.
- 对安德森型POMs进行共价修改以控制组装.
主要成果:
- 获得了改造的安德森POMs和α-CDs的前所未有的超分子复合体.
- 证明了有机-无机伪-罗塔克桑结构的形成,与多-罗塔克桑不同.
- 在水溶液中确认了POM/α-CD伪罗塔克桑的稳定性.
结论:
- 对POMs的共价修饰有效地调节了与α-CDs的超分子组合.
- 一个新的类型的POM/α-CD伪rotaxane复合物已经成功地创建.
- 这些伪rotaxanes代表了第一个POM/CD组件,在水溶液中表现出稳定的chirality.
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