In situ single-crystal synchrotron X-ray diffraction studies of biologically active gases in metal-organic frameworks

Russell M. Main, Simon M. Vornholt, Cameron M. Rice, Caroline Elliott, Samantha E. Russell, Peter Kerr, Mark R. Warren, Russell E. Morris*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
4 Downloads (Pure)

Abstract

Metal-organic frameworks (MOFs) are well known for their ability to adsorb various gases. The use of MOFs for the storage and release of biologically active gases, particularly nitric oxide (NO) and carbon monoxide (CO), has been a subject of interest. To elucidate the binding mechanisms and geometry of these gases, an in situ single crystal X-ray diffraction (scXRD) study using synchrotron radiation at Diamond Light Source has been performed on a set of MOFs that display promising gas adsorption properties. NO and CO, were introduced into activated Ni-CPO-27 and the related Co-4,6-dihydroxyisophthalate (Co-4,6-dhip). Both MOFs show strong binding affinity towards CO and NO, however CO suffers more from competitive co-adsorption of water. Additionally, we show that morphology can play an important role in the ease of dehydration for these two systems.
Original languageEnglish
Article number44
Number of pages7
JournalCommunications Chemistry
Volume6
DOIs
Publication statusPublished - 1 Mar 2023

Keywords

  • Metal-organic framework
  • MOF-74
  • CPO-27
  • Modulation chemistry
  • NO
  • CO
  • scXRD
  • Gas adsorption
  • Single crystal transformation

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