共价键
微型多孔材料
组合化学
单体
席夫碱
芳基
共价有机骨架
化学
偶联反应
模块化设计
材料科学
高分子化学
拓扑(电路)
有机化学
计算机科学
催化作用
聚合物
数学
烷基
组合数学
操作系统
作者
Xianghao Han,Ke Gong,Xin Huang,Jian‐Wei Yang,Xiao Feng,Jing Xie,Bo Wang
标识
DOI:10.1002/anie.202202912
摘要
Covalent organic frameworks (COFs) featuring permanent porosity, designable topologies, and tailorable functionalities have attracted great interest in the past two decades. Developing efficient modular approaches to rationally constructing COFs from a set of molecules via covalent linking has been long pursued. Herein, we report a facile one-pot strategy to prepare COFs via an irreversible Suzuki coupling reaction followed by a reversible Schiff's base reaction without the need for intermediate isolation. Gram-scale ordered frameworks with kgm topology and rich porosities can be obtained by using diamino-aryl halide and dialdehyde aryl-borate compounds as monomers. The resultant microporous CR-COFs were used for efficient C2 H4 /C3 H6 separation. This strategy reduces the waste generated and efforts consumed by stepwise reactions and relative purification processes, making the large-scale syntheses of stable COFs feasible. Moreover, it offers a novel modular approach to designing COF materials.
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