APA
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He, J.-F., Aggarwal, K., Katyal, N., He, S., Chiang, E., Dunning, S. G., … Humphrey, S. M. (2020). Reversible Solid-State Isomerism of Azobenzene-Loaded Large-Pore Isoreticular Mg-CUK-1. Journal of the American Chemical Society.
Chicago/Turabian
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He, Ju-Fang, Kanchan Aggarwal, Naman Katyal, Shichao He, E. Chiang, Samuel G Dunning, Joseph E. Reynolds, et al. “Reversible Solid-State Isomerism of Azobenzene-Loaded Large-Pore Isoreticular Mg-CUK-1.” Journal of the American Chemical Society (2020).
MLA
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He, Ju-Fang, et al. “Reversible Solid-State Isomerism of Azobenzene-Loaded Large-Pore Isoreticular Mg-CUK-1.” Journal of the American Chemical Society, 2020.
BibTeX Click to copy
@article{ju-fang2020a,
title = {Reversible Solid-State Isomerism of Azobenzene-Loaded Large-Pore Isoreticular Mg-CUK-1.},
year = {2020},
journal = {Journal of the American Chemical Society},
author = {He, Ju-Fang and Aggarwal, Kanchan and Katyal, Naman and He, Shichao and Chiang, E. and Dunning, Samuel G and Reynolds, Joseph E. and Steiner, A. and Henkelman, G. and Que, E. and Humphrey, S. M.}
}
A large-pore version of Mg-CUK-1, a water-stable MOF with 1-D channels, was synthesized in basic water. Mg-CUK-1L has a BET surface area of 2,896 m2 g-1 and shows a stark selectivity for CO2 sorption over N2, O2, H2, and CH4. It displays reversible, multi-step gated sorption of CO2 below 0.33 atm. The dehydrated single crystal structure of Mg-CUK-1L confirms retention of the open channel structure. The MOF is thermally stable up to 450 °C and can be loaded with organic molecules by direct immersion in hot melts, providing single crystals suitable for X-ray diffraction. Trans-azobenzene fills the channels in a 2×2 end-to-end fashion. Solid-state UV-Vis spectroscopy of the composite reveals that azobenzene molecules undergo fully reversible trans-cis isomerization, despite being close-packed; this surprising result is confirmed by DFT-simulated UV-vis spectra.