Installing a molecular truss beam stabilizes MOF structures

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Enhancing the stability and durability of metal-organic frameworks (MOFs) is vital for practical applications because many promising MOF materials suffer from phase transitions and/or structural decompositions with humidity being a particularly damaging condition. In mechanical engineering, the frame of buildings and furniture can be stabilized significantly by installing a truss beam. Employing the same principle, we functionalized the organic component of MOF-5 to contain a carbazole moiety that can act as a molecular truss beam by reaching across the corner and forming a stable pi-pi interaction with a phenyl group on the edge position of the MOF-skeleton. This structural support enhanced the stability of the MOF substantially, allowing the designed MOF to maintain compositional integrity under steam conditions at 90 degrees C for similar to 5 days. The unmodified MOF-5 shows clear signs of structural collapse after similar to 1 h.
Publisher
NATURE PORTFOLIO
Issue Date
2022-05
Language
English
Article Type
Article
Citation

NPJ COMPUTATIONAL MATERIALS, v.8, no.1

ISSN
2057-3960
DOI
10.1038/s41524-022-00799-3
URI
http://hdl.handle.net/10203/296808
Appears in Collection
CH-Journal Papers(저널논문)
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