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A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal–Organic Polyhedra
Author(s) -
CarnéSánchez Arnau,
Craig Gavin A.,
Larpent Patrick,
Guillerm Vincent,
Urayama Kenji,
Maspoch Daniel,
Furukawa Shuhei
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201901668
Subject(s) - porosity , solubility , covalent bond , polymerization , supramolecular chemistry , monomer , alkyl , polymer , chemical engineering , chemistry , amorphous solid , ligand (biochemistry) , metal , porous medium , dynamic covalent chemistry , polymer chemistry , materials science , metal organic framework , organic chemistry , molecule , receptor , engineering , biochemistry , adsorption
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.