“Orthogonal-Twisted-Arm” Ligands for The Construction of Metal–Organic Frameworks (MOFs): New Topology and Catalytic Reactivity |
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| Authors: | Kai Zhao Dr Ying He Chuan Shan Junyu Ren Dr Lukasz Wojtas Prof Li Wang Prof Guanghua Li Prof Zhiguang Song Prof Xiaodong Shi |
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| Institution: | 1. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin, 130012 P.R. China;2. Department of Chemistry, University of South Florida, Tampa, FL, 33620 USA;3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin, 130012 P.R. China |
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| Abstract: | 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 Cd2+ and Cu2+ 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 CO2. This new MOF showed superior catalytic reactivity toward the epoxide-CO2 cycloaddition, giving >50 folds yield enhancement over the controlled reaction without MOF. It is expected that this new ligand design, porous structure, and excellent CO2 catalytic reactivity will make OTA-MOF promising new materials for applications in catalysis and separation. |
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| Keywords: | CO2 cycloaddition metal–organic frameworks new topology orthogonal twisted arms |
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