A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra
A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra
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DOI：
10.1002/anie.201901668
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发表时间：
2019-05-06
影响因子：
16.6
通讯作者：
Furukawa, Shuhei
中科院分区：
文献类型：
--
作者：
Carne-Sanchez, Arnau;Craig, Gavin A.;Furukawa, Shuhei
多孔分子笼具有因其溶解性而产生的特有的加工性，这使得它们能够融入到多孔材料中。要获得溶解性，通常需要共价结合的官能团，而这些官能团对于孔隙率来说是不必要的，最终会占据材料中的自由体积，从而减少材料的表面积。在这里，描述了一种方法，该方法利用金属-有机多面体(MOPS)中的配位键，通过可逆地连接烷基功能化的配体来使不可溶的MOPS变得可溶。然后，我们使用新溶解的MOPS作为超分子聚合反应的单体，获得胶体和凝胶形状的永久多孔、无定形聚合物，与共价官能化MOPS制成的材料相比，这种聚合物表现出更高的吸气量。
Porous molecular cages have a characteristic processability arising from their solubility, which allows their incorporation into porous materials. Attaining solubility often requires covalently bound functional groups that are unnecessary for porosity and which ultimately occupy free volume in the materials, decreasing their surface areas. Here, a method is described that takes advantage of the coordination bonds in metal-organic polyhedra (MOPs) to render insoluble MOPs soluble by reversibly attaching an alkyl-functionalized ligand. We then use the newly soluble MOPs as monomers for supramolecular polymerization reactions, obtaining permanently porous, amorphous polymers with the shape of colloids and gels, which display increased gas uptake in comparison with materials made with covalently functionalized MOPs.