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A Versatile Method for Functionalization of Covalent Organic Frameworks via Suzuki–Miyaura Cross‐Coupling
Author(s) -
Liao Qiaobo,
Ke Can,
Huang Xin,
Wang Dongni,
Han Qingwen,
Zhang Yifan,
Zhang Yiying,
Xi Kai
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202012435
Subject(s) - surface modification , expediting , covalent bond , combinatorial chemistry , covalent organic framework , nanotechnology , chemistry , materials science , organic chemistry , engineering , systems engineering
Post‐synthetic modification (PSM) is a prevalent and powerful strategy to introduce desired functionalities into covalent organic frameworks (COFs) for functional products, expediting their applications vastly. Herein, we demonstrate a PSM strategy for functionalizing brominated COFs via the well‐developed Suzuki–Miyaura cross‐coupling. By this, a variety of functionalities were installed into COFs efficiently, while the crystallinity and porosity of COFs was well‐retained. As a proof‐of‐concept, BrCOF‐2 was modified with trifluoromethyl groups to produce a SF 6 adsorbent with remarkably enhanced properties. This facile and versatile approach opens a new door for the synthesis of functional COFs, and greatly expands the scope of their structural design aiming for various properties and applications.