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

Isabelle M. Jones, Gemma F. Turner, Kari Pitts, Rees Powell, Alan Riboldi-Tunnicliffe, Rachel Williamson, Stephanie Boer, Lauren Allen, Stephen A. Moggach

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)6533-6538
Number of pages6
JournalCrystEngComm
Volume25
Issue number47
DOIs
Publication statusPublished - 22 Nov 2023

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