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

Arnau Carné-Sánchez (1, 2) , Gavin Craig (2) , Patrick Larpent (3, 2) , Vincent Guillerm (1) , Kenji Urayama (4) , Daniel Maspoch (1) , Shuhei Furukawa (2)

1 ICN2 - Institut Catala de Nanociencia i Nanotecnologia
2 Institute for Integrated Cell-Material Sciences
3 CMC - Chimie de la matière complexe
4 Kyoto Institute of Technology

Porous molecular cages have a characteristic proc-essability 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.

Domaines: Matériaux; Chimie inorganique; Cristallographie; Chimie de coordination

Arnau Carné-Sánchez, Gavin Craig, Patrick Larpent, Vincent Guillerm, Kenji Urayama, et al.. A Coordinative Solubilizer Method to Fabricate Soft Porous Materials from Insoluble Metal-Organic Polyhedra. Angewandte Chemie International Edition, 2019, 58 (19), pp.6347-6350. ⟨10.1002/anie.201901668⟩. ⟨hal-02364025⟩