Issue 47, 2023

High-pressure induced guest-mediated gate opening behaviour of the Co-based framework ZIF-67

Abstract

High-pressure single crystal X-ray diffraction has been used to probe framework–guest interactions in the Co-based metal–organic framework ZIF-67 during compression in 4 : 1 MeOH : EtOH and liquid nitrogen (LN2) pressure-transmitting media. On increasing pressure, the structure undergoes a gate-opening phase transition, characterised by rotation of the 2-methylimidazolate ligand, at 1.57 GPa in MeOH : EtOH and at 0.43 GPa LN2. Adsorption of N2 occurred progressively with increasing pressure into 6 adsorption sites and resulted in the first documented instance of pressure-induced solvatochromism in ZIF-67.

Graphical abstract: High-pressure induced guest-mediated gate opening behaviour of the Co-based framework ZIF-67

Supplementary files

Article information

Article type
Paper
Submitted
06 Oct 2023
Accepted
07 Nov 2023
First published
22 Nov 2023

CrystEngComm, 2023,25, 6533-6538

High-pressure induced guest-mediated gate opening behaviour of the Co-based framework ZIF-67

I. M. Jones, G. F. Turner, K. Pitts, R. Powell, A. Riboldi-Tunnicliffe, R. Williamson, S. Boer, L. Allen and S. A. Moggach, CrystEngComm, 2023, 25, 6533 DOI: 10.1039/D3CE00979C

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