Issue 60, 2024

Guest-selective shape-memory effect in a switchable metal–organic framework DUT-8(Zn)

Abstract

Crystal size engineering allows tailoring of flexible metal–organic frameworks (MOFs) to achieve new properties. The gating type flexibility of the DUT-8(Zn) ([Zn2(2,6-ndc)2(dabco)]n, 2,6-ndc = 2,6-naphthalene dicarboxylate, dabco = 1,4-diazabicyclo-[2.2.2]-octane) compound is known to be extremely particle size sensitive. Here, the physisorption of ethanol vapor gives rise to so-called shape-memory effect, leading to rigidification and flexibility suppression. According to powder X-ray diffraction and nitrogen physisorption experiments, the open pore phase is retained selectively after desorption of alcohols, which could be attributed to the nano-structuring and surface deformation of the crystals as a result of exposure to alcohols.

Graphical abstract: Guest-selective shape-memory effect in a switchable metal–organic framework DUT-8(Zn)

Supplementary files

Article information

Article type
Communication
Submitted
09 Dzi 2024
Accepted
07 Kho 2024
First published
27 Kho 2024

Chem. Commun., 2024,60, 7745-7748

Guest-selective shape-memory effect in a switchable metal–organic framework DUT-8(Zn)

L. Abylgazina, I. Senkovska, V. Bon, N. Bönisch, M. Maliuta and S. Kaskel, Chem. Commun., 2024, 60, 7745 DOI: 10.1039/D4CC01657B

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