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

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.

Citation

Main , R M , Vornholt , S M , Rice , C M , Elliott , C , Russell , S E , Kerr , P , Warren , M R & Morris , R E 2023 , ' In situ single-crystal synchrotron X-ray diffraction studies of biologically active gases in metal-organic frameworks ' , Communications Chemistry , vol. 6 , 44 . https://doi.org/10.1038/s42004-023-00845-1

Publication

Communications Chemistry

Status

Peer reviewed

DOI

https://doi.org/10.1038/s42004-023-00845-1

ISSN

2399-3669

Type

Journal article

Rights

Copyright © The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

Description

Funding: The authors are also grateful for financial assistance from the ERC under advanced grant 787073, the EPSRC for a studentship (EP/N509759/1) and the CRITICAT Centre for Doctoral Training (EP/L016419/1).

Collections

University of St Andrews Research

URI

http://hdl.handle.net/10023/27127