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Revisiting Vibrational Spectroscopy to Tackle the Chemistry of Zr6O8Metal-Organic Framework Nodes
- Source :
- ACS Applied Materials & Interfaces; June 2022, Vol. 14 Issue: 23 p27040-27047, 8p
- Publication Year :
- 2022
-
Abstract
- The metal-organic framework MOF-808 contains Zr6O8nodes with a high density of vacancy sites, which can incorporate carboxylate-containing functional groups to tune chemical reactivity. Although the postsynthetic methods to modify the chemistry of the Zr6O8nodes in MOFs are well known, tackling these alterations from a structural perspective is still a challenge. We have combined infrared spectroscopy experiments and first-principles calculations to identify the presence of node vacancies accessible for chemical modifications within the MOF-808. We demonstrate the potential of our approach to assess the decoration of MOF-808 nodes with different catechol–benzoate ligands. Furthermore, we have applied advanced synchrotron characterization tools, such as pair distribution function analyses and X-ray absorption spectroscopy, to resolve the atomic structure of single metal sites incorporated into the catechol groups postsynthetically. Finally, we demonstrate the catalytic activity of these MOF-808 materials decorated with single copper sites for 1,3-dipolar cycloadditions.
Details
- Language :
- English
- ISSN :
- 19448244
- Volume :
- 14
- Issue :
- 23
- Database :
- Supplemental Index
- Journal :
- ACS Applied Materials & Interfaces
- Publication Type :
- Periodical
- Accession number :
- ejs59804129
- Full Text :
- https://doi.org/10.1021/acsami.2c04712