Large-Pore Apertures in a Series of Metal-Organic Frameworks
Large-Pore Apertures in a Series of Metal-Organic Frameworks
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DOI：
10.1126/science.1220131
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发表时间：
2012-05-25
期刊：
影响因子：
56.9
通讯作者：
Yaghi, Omar M.
中科院分区：
文献类型：
--
作者：
Deng, Hexiang;Grunder, Sergio;Yaghi, Omar M.
我们报告了一种策略，将金属有机骨架(MOF)的孔径扩大到以前没有达到的大小区域(>；32埃)。具体地说，众所周知的MOF-74结构，MOF-74，从其最初的一个苯环(I)连接到两个、三个、四个、五个、六个、七个、九个和十一个(分别为II到XI)的系统扩展，提供了具有从14到98埃的孔径的一系列MOF-74结构(称为IRMOF-74-I到XI)。该系列的所有成员都具有不相互穿透的结构，并展示了坚固的结构，其永久孔隙率和高热稳定性(高达300摄氏度)证明了这一点。低聚乙二醇官能化的IRMOF-74-VII和IRMOF-74-IX的孔径足够大，可以让天然蛋白质进入孔隙。
We report a strategy to expand the pore aperture of metal-organic frameworks (MOFs) into a previously unattained size regime (>32 angstroms). Specifically, the systematic expansion of a well-known MOF structure, MOF-74, from its original link of one phenylene ring (I) to two, three, four, five, six, seven, nine, and eleven (II to XI, respectively), afforded an isoreticular series of MOF-74 structures (termed IRMOF-74-I to XI) with pore apertures ranging from 14 to 98 angstroms. All members of this series have non-interpenetrating structures and exhibit robust architectures, as evidenced by their permanent porosity and high thermal stability (up to 300 degrees C). The pore apertures of an oligoethylene glycol-functionalized IRMOF-74-VII and IRMOF-74-IX are large enough for natural proteins to enter the pores.