He, J, Aggarwal, K, Katyal, N, He, S, Chiang, E, Dunning, SG, Reynolds, JE, Steiner, A 
ORCID: 0000-0002-4315-6123, Henkelman, G ORCID: 0000-0002-0336-7153, Que, EL ORCID: 0000-0001-6604-3052 et al (show 1 more authors)
(2020)
Reversible Solid-State Isomerism of Azobenzene-Loaded Large-Pore Isoreticular Mg-CUK-1
Journal of the American Chemical Society, 142 (14).
pp. 6467-6471.
ISSN 0002-7863, 1520-5126
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Abstract
A large-pore version of Mg-CUK-1, a water-stable metal-organic framework (MOF) with 1-D channels, was synthesized in basic water. Mg-CUK-1L has a BET surface area of 2896 m2 g-1 and shows stark selectivity for CO<inf>2</inf> sorption over N<inf>2</inf>, O<inf>2</inf>, H<inf>2</inf>, and CH<inf>4</inf>. It displays reversible, multistep gated sorption of CO<inf>2</inf> below 0.33 atm. The dehydrated single-crystal structure of Mg-CUK-1L confirms retention of the open-channel structure. The MOF can be loaded with organic molecules by immersion in hot melts, providing single crystals suitable for X-ray diffraction. trans-Azobenzene fills the channels in a 2 × 2 arrangement. Solid-state UV-vis spectroscopy reveals that azobenzene molecules undergo reversible trans-cis isomerization, despite being close-packed; this surprising result is confirmed by DFT-simulated UV-vis spectra.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 3402 Inorganic Chemistry, 34 Chemical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 01 Apr 2020 11:07 |
| Last Modified: | 01 Mar 2026 09:34 |
| DOI: | 10.1021/jacs.9b13793 |
| Related Websites: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3081304 |
| Disclaimer: | The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate. |
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