Abstract:Metal organic frameworks (MOF) are of great potential for molecular separation, but the ligand rotation flexibility makes them remain challenging in the construction of fixed nanochannels for precise sieving. Here we report an electrostatic‐anchoring strategy to fix the rotation of 2‐methylimidazole (2‐MIM) ligand in ZIF‐8. Electrostatic inducer trifluoroacetate anchored at and blocked the six‐membered windows of ZIF‐8, and meanwhile induced the positive 2‐MIM rotated from initial 49° to 68°, thus opening neig… Show more
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