在基于TPE的Zr-MOF中具有异型灵活性和刚性,具有scu拓
Sha-Sha Meng1, Ming Xu1, Hanxi Guan2,3
1Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
Nature communications
|September 2, 2023
概括
基于四乙烯 (TPE) 的金属有机框架 (MOF) 具有异型灵活性. 通过使用特定的链接器来修改这些TPE-MOF,通过控制连接体运动来增强稳定性和分离能力.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 纳米技术 纳米技术
背景情况:
- 基于四乙烯 (TPE) 的配体对于开发功能性和响应性金属有机框架 (MOFs) 至关重要.
- 基于TPE的MOF具有独特的结构特性,包括异型灵活性,可根据特定应用量身定制.
研究的目的:
- 为了合成和表征一种非互穿的基于TPE的scuZr-MOF,具有异型灵活性.
- 研究安装特定连接器对框架的灵活性和连接体运动的影响.
- 探索这些修改后的MOF在增强稳定性和分离应用中的潜力.
主要方法:
- 使用1,1,2,2-四氧化 (H4TCPE) 合成一种基于TPE的Zr-MOF (Zr-TCPE).
- 通过单独将二碳酸链接器 (L1或L2) 安装到特定的口袋中,对MOF框架进行异型刚性化.
- 使用2H固态NMR进行表征,观察连接体运动和刚性化过程.
主要成果:
- 成功合成了一种基于TPE的非透式scuZr-MOF,具有两个异构体口袋.
- 个别链接器安装导致沿特定轴 (b轴或c轴) 的框架灵活性异型刚性化.
- 双连接器安装完全使框架变硬,限制了连接体运动,提高了MOF的稳定性和分离能力.
结论:
- 在scu Zr-MOFs中灵活性的异型刚性化提供了对连接体运动方向控制的策略.
- 这种方法可以设计响应刺激的发射材料和高效的分离材料.
- 该研究展示了一种通过控制链接器安装来调整MOF属性的方法.
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