Amine‐Tagged Fragmented Ligand Installation for Covalent Modification of MOF‐74

Autor: Hyeonbin Ha, Junmo Seong, Seok Jeong, Seonghwan Lee, Myoung Soo Lah, Min Kim, Jaewoong Lim, Seung Bin Baek
Rok vydání: 2021
Předmět:
Zdroj: Angewandte Chemie. 133:9382-9386
ISSN: 1521-3757
0044-8249
Popis: MOF-74 is one of the most explored metal-organic frameworks (MOFs), but its functionalization is limited to the dative post-synthetic modification (PSM) of the monodentate solvent site. Owing to the nature of the organic ligand and framework structure of MOF-74, the covalent PSM of MOF-74 is very demanding. Herein, we report, for the first time, the covalent PSM of amine-tagged defective Ni-MOF-74, which is prepared by de novo solvothermal synthesis by using aminosalicylic acid as a functionalized fragmented organic ligand. The covalent PSM of the amino group generates metal binding sites, and subsequent post-synthetic metalation with PdII ions affords the PdII -incorporated Ni-MOF-74 catalyst. This catalyst exhibits highly efficient, size-selective, and recyclable catalytic activity for the Suzuki-Miyaura cross-coupling reaction. This strategy is also useful for the covalent modification of amine-tagged defective Ni2 (DOBPDC), an expanded analogue of MOF-74.
Databáze: OpenAIRE
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