在网状框架中使用链接器反分子性工程,用于构建具有协同性开放金属位点的坚固材料,以获得高效的SF6捕获
Pengfu Gao1, Weiwei Li2, Boxu Dong1
1State Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
状链接器可以创建多样化的网状框架. 乙烯酸纯链接器为捕获SF6形成了多孔的3D材料,而racemic链接器则产生了密集的2D结构.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 状链接器会影响网状框架的特性,例如孔径大小和拓.
- 以前的研究表明,enantiopure与racemic链接器可以产生不同的结构,但例子很少见,往往是偶然的.
研究的目的:
- 为了合理设计网状材料,使用奇拉链接器和瓦拉赫规则.
- 为了研究链接器 enantiopurity 对框架结构和功能的影响.
- 开发一种用于架构功能性网状材料的新方法.
主要方法:
- 金属定向的协调组件使用与Cu离子的反和racemic合链接器.
- 在室温水中结晶.
- 气体吸附和SF6/N2分离的突破性实验.
- 理论模拟. 理论模拟.
主要成果:
- 埃纳蒂欧普尔链接器产生了一个同体性,3D多孔框架 (S-TAMOF-3D) 与 (10,3) -a srs拓.
- 种族链接器完全形成了一个2D密集的,无孔的分层结构 (race-TAMOF-2D).
- 激活的S-TAMOF-3D由于三角形腔和开放的Cu2+位点,证明了高效的SF6/N2分离.
结论:
- 连接器的enantiopicity显著扩大了超越传统方法的网状材料的结构多样性.
- 瓦拉赫规则可以指导具有特定性质的延伸网状材料的合理设计.
- 这项工作提出了一种创新策略,用于创建先进的功能性网状材料.
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