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A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra

submitted on 13.12.2018, 05:27 and posted on 13.12.2018, 17:32 by Arnau Carné-Sánchez, Gavin A. Craig, Patrick Larpent, vincent guillerm, Kenji Urayama, Daniel Maspoch, Shuhei Furukawa

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 and decrease their surface areas. Here, we describe a method 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.


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Kyoto University



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Declaration of Conflict of Interest

No conflict of interest