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Dispersing metal‐organic framework (MOF) solids in stable colloids is crucial for their availability and processibility. Herein, we report a crown ether surface coordination approach for functionalizing the surface‐exposed metal sites of MOF particles with amphiphilic carboxylated crown ether (CEC). The surface‐bound crown ethers significantly improve MOF solvation without compromising the accessible voids. We demonstrate that CEC‐coated MOFs exhibit exceptional colloidal dispersibility and stability in 11 distinct solvents and six polymer matrices with a wide range of polarities. The MOF‐CEC can be instantaneously suspended in immiscible two‐phase solvents as an effective phase‐transfer catalyst and can form various uniform membranes with enhanced adsorption and separation performance, which highlights the effectiveness of crown ether coating. [ABSTRACT FROM AUTHOR]

Keywords: Crown Ether; MOF Nanoparticle; Mixed-Matrix Membrane; Phase-Transfer Catalyst; Universal Dispersibility EN Crown Ether MOF Nanoparticle Mixed-Matrix Membrane Phase-Transfer Catalyst Universal Dispersibility 1 1 1 08/17/23 20230821 NES 230821 B Dispersing metal-organic framework b (MOF) solids in stable colloids is critical for their availability and processibility. The crown ether-coated MOFs exhibit potential as effective phase-transfer catalysts and enable the fabrication of uniform membranes with improved performances. In their Communication (e202303280), Hang Xing et al. report a crown ether surface coordination approach that enables the universal suspension of various MOF powders into immiscible polar and nonpolar solvents, exhibiting exceptional dispersibility without compromising the accessible voids. [Extracted from the article]

In their Communication (e202303280), Hang Xing et al. report a crown ether surface coordination approach that enables the universal suspension of various MOF powders into immiscible polar and nonpolar solvents, exhibiting exceptional dispersibility without compromising the accessible voids. Keywords: Crown Ether; MOF Nanoparticle; Mixed-Matrix Membrane; Phase-Transfer Catalyst; Universal Dispersibility EN Crown Ether MOF Nanoparticle Mixed-Matrix Membrane Phase-Transfer Catalyst Universal Dispersibility 1 1 1 08/21/23 20230821 NES 230821 B Dispersing metal-organic framework b (MOF) solids in stable colloids is critical for their availability and processibility. Back Cover: Metal-Organic Framework Nanoparticles with Universal Dispersibility through Crown Ether Surface Coordination for Phase-Transfer Catalysis and Separation Membranes (Angew. [Extracted from the article]