Cooperative light-induced breathing of soft porous crystals via azobenzene buckling.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
12 Apr 2022
12 Apr 2022
Historique:
received:
20
10
2021
accepted:
28
01
2022
entrez:
13
4
2022
pubmed:
14
4
2022
medline:
14
4
2022
Statut:
epublish
Résumé
Although light is a prominent stimulus for smart materials, the application of photoswitches as light-responsive triggers for phase transitions of porous materials remains poorly explored. Here we incorporate an azobenzene photoswitch in the backbone of a metal-organic framework producing light-induced structural contraction of the porous network in parallel to gas adsorption. Light-stimulation enables non-invasive spatiotemporal control over the mechanical properties of the framework, which ultimately leads to pore contraction and subsequent guest release via negative gas adsorption. The complex mechanism of light-gated breathing is established by a series of in situ diffraction and spectroscopic experiments, supported by quantum mechanical and molecular dynamic simulations. Unexpectedly, this study identifies a novel light-induced deformation mechanism of constrained azobenzene photoswitches relevant to the future design of light-responsive materials.
Identifiants
pubmed: 35414051
doi: 10.1038/s41467-022-29149-z
pii: 10.1038/s41467-022-29149-z
pmc: PMC9005654
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1951Subventions
Organisme : EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
ID : advanced grant no. 694345
Informations de copyright
© 2022. The Author(s).
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