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

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

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1139-1142
Number of pages4
JournalChemical Communications
Volume58
Issue number8
DOIs
Publication statusPublished - 25 Jan 2022

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