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Design of a MOF based on octa-nuclear zinc clusters realizing both thermal stability and structural flexibility

Chemical Communications, ISSN: 1364-548X, Vol: 58, Issue: 8, Page: 1139-1142
2022
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Article Description

An octa-nuclear zinc (Zn8) cluster-based two-fold interpenetrated metal-organic framework (MOF) of [(CH3)2NH2]2[Zn8O3(FDC)6]·7DMF (denoted as Zn8-as; H2FDC = 9H-fluorene-2,7-dicarboxylic acid; DMF = N,N-dimethylformamide) was synthesized by the reaction of a hard base of a curved dicarboxylate ligand (H2FDC) with the borderline acid of Zn(ii) under solvothermal conditions. Zn8-as shows significant crystal volume shrinkage upon heating, yielding a solvate-free framework of [(CH3)2NH2]2[Zn8O3(FDC)6] (Zn8-de). Zn8-de displays gated adsorption for C2H2 and type-I adsorption for CO2, attributed to the framework flexibility and the different interactions between the gas molecules and the host framework.

Bibliographic Details

Ma, Yunsheng; Tang, Xiaoyan; Chen, Ming; Mishima, Akio; Li, Liangchun; Hori, Akihiro; Wu, Xiaoyu; Ding, Lifeng; Kusaka, Shinpei; Matsuda, Ryotaro

Royal Society of Chemistry (RSC)

Materials Science; Chemical Engineering; Chemistry

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