异金属有机框架的新家族中的可编程拓
Patrick F Muldoon1, Chong Liu1, Carson C Miller1
1Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States.
Journal of the American Chemical Society
|May 4, 2018
概括
研究人员开发了一种使用多个金属离子合成复杂金属有机框架 (MOF) 的新策略. 这种方法可以精确控制无机建筑单元的组装,创造具有独特特性的新型MOF结构.
科学领域:
- 材料科学
- 无机化学
- 晶体学
背景情况:
- 金属有机框架 (MOF) 通过各种构建块提供可调节的特性.
- 用多个金属离子合成MOF在控制组装和拓方面存在重大挑战.
- 现有的网状化学方法对于涉及两个以上构件的复杂MOF合成是有限的.
研究的目的:
- 制定一项系统和差异化控制多种金属在MOF中的协调策略.
- 为了使复杂的异金属MOF与受控结构的合成.
- 通过精确组装无机二级建筑单元 (SBU) 探索新的MOF拓.
主要方法:
- 使用双功能异酸连接剂和衍生品来区分金属协调.
- 使用单溶热反应来控制多个无机SBU的组装.
- 设计的MOF含有M6 ((μ3-O) n ((μ3-OH) 8-nM ((CO2) 12) (M=Zr4+,Hf4+,Dy3+) 的SBU和金属-基复合物.
主要成果:
- 成功合成了多种不同的异金属MOF与多达三种不同的无机SBU.
- 通过利用链接器的协调特性,对MOF组件和拓进行了证明.
- 实现了8个新的MOF结构,包括使用fcu,ftw和新型三极管 pfm晶体网.
结论:
- 开发的策略允许精确控制具有多个金属离子和SBU的复杂MOF的构造.
- 这种方法扩大了设计具有定制性质和新兴功能的MOF的可能性.
- 像pfmnet这样的新型MOF拓的合成,为材料科学和网状化学开辟了新的途径.
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