Synthesis of Zeolitic Imidazolate Framework-7 in a Water/Ethanol Mixture and Its Ethanol-Induced Reversible Phase Transition



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Room to breathe: An efficient method for the synthesis of zeolitic imidazolate framework-7 (ZIF-7) in ethanol/water at room temperature is reported. The ZIF-7 undergoes a reverse-phase transition from large pore (lp)-phase to narrow pore (np)-phase under heat treatment and from np-phase back to lp-phase in ethanol solution.