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“Orthogonal‐Twisted‐Arm” Ligands for The Construction of Metal–Organic Frameworks (MOFs): New Topology and Catalytic Reactivity
Author(s) -
Zhao Kai,
He Ying,
Shan Chuan,
Ren Junyu,
Wojtas Lukasz,
Wang Li,
Li Guanghua,
Song Zhiguang,
Shi Xiaodong
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202003878
Subject(s) - reactivity (psychology) , catalysis , metal organic framework , ligand (biochemistry) , epoxide , topology (electrical circuits) , sorption , chemistry , benzoic acid , cycloaddition , yield (engineering) , metal , materials science , organic chemistry , adsorption , medicine , biochemistry , alternative medicine , receptor , mathematics , pathology , combinatorics , metallurgy
Extended tetratopic benzoic acid ligands with “orthogonal‐twisted‐arms” conformations were designed and synthesized for the construction of new MOF structures (OTA‐MOF). Upon coordination with Cd 2+ and Cu 2+ cations, two well‐defined new MOFs were prepared. X‐ray single crystal structures were successfully obtained, demonstrating the formation of a new topology (4,4,4‐c). The OTA2‐MOF‐Cu gave moderate stability in organic solvents and good gas sorption ability toward CO 2 . This new MOF showed superior catalytic reactivity toward the epoxide‐CO 2 cycloaddition, giving >50 folds yield enhancement over the controlled reaction without MOF. It is expected that this new ligand design, porous structure, and excellent CO 2 catalytic reactivity will make OTA‐MOF promising new materials for applications in catalysis and separation.