Controlled synthesis of large single crystals of metal-organic framework CPO-27-Ni prepared by a modulation approach: in situ single crystal X-ray diffraction studies

Simon Maximilian Vornholt*, Caroline Elliott, Cameron M. Rice, Samantha E. Russell, Peter J. Kerr, Daniel N. Rainer, Michal Mazur, Mark R. Warren, Paul S. Wheatley, Russell E. Morris

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)
19 Downloads (Pure)

Abstract

The size of single crystals of the metal‐organic framework CPO‐27‐Ni was incrementally increased through a series of modulated syntheses. A novel linker modulated synthesis using 2,5‐dihydroxyterephthalic acid and the isomeric ligand 4,6‐dihydroxyisophthalic acid yielded large single crystals of CPO‐27‐Ni (∼70 μm). All materials were shown to have high crystallinity and phase purity through powder X‐ray diffraction, electron microscopy methods, thermogravimetry, and compositional analysis. For the first time single‐crystal structure analyses were carried out on CPO‐27‐Ni. High BET surface areas and nitric oxide (NO) release efficiencies were recorded for all materials. Large single crystals of CPO‐27‐Ni showed a prolonged NO release and proved suitable for in situ single‐crystal diffraction experiments to follow the NO adsorption. An efficient activation protocol was developed, leading to a dehydrated structure after just 4 h, which subsequently was NO‐loaded, leading to a first NO loaded single‐crystal structural model of CPO‐27‐Ni.
Original languageEnglish
Pages (from-to)8537-8546
Number of pages11
JournalChemistry - A European Journal
Volume27
Issue number33
Early online date7 May 2021
DOIs
Publication statusPublished - 10 Jun 2021

Keywords

  • CPO-27
  • Gas adsorption
  • Metal-organic frameworks (MOFs)
  • Modulation synthesis
  • MOF-74
  • Single crystals

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