Unraveling the Guest-Induced Switchability in the Metal-Organic Framework DUT-13(Zn)**
Felsner B, Bon V, Evans JD, Schwotzer F, Grunker R, Senkovska I, Kaskel S (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 27
Pages Range: 9708-9715
Journal Issue: 37
DOI: 10.1002/chem.202100599
Abstract
The switching mechanism of the flexible framework Zn4O(benztb)1.5 (benztb=N,N,N’,N’-benzidine tetrabenzoate), also known as DUT-13, was studied by advanced powder X-ray diffraction (PXRD) and gas physisorption techniques. In situ synchrotron PXRD experiments upon physisorption of nitrogen (77 K) and n-butane (273 K) shed light on the hitherto unnoticed guest-induced breathing in the MOF. The mechanism of contraction is based on the conformationally labile benztb ligand and accompanied by a reduction in specific pore volume from 2.03 cm3 g−1 in the open-pore phase to 0.91 cm3 g−1 in the contracted-pore phase. The high temperature limit for adsorption-induced contraction of 170 K, determined by systematic temperature variation of methane adsorption isotherms, indicates that the DUT-13 framework is softer than other mesoporous MOFs like DUT-49 and does not support the formation of overloaded metastable states required for negative gas-adsorption transitions.
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How to cite
APA:
Felsner, B., Bon, V., Evans, J.D., Schwotzer, F., Grunker, R., Senkovska, I., & Kaskel, S. (2021). Unraveling the Guest-Induced Switchability in the Metal-Organic Framework DUT-13(Zn)**. Chemistry - A European Journal, 27(37), 9708-9715. https://doi.org/10.1002/chem.202100599
MLA:
Felsner, Bodo, et al. "Unraveling the Guest-Induced Switchability in the Metal-Organic Framework DUT-13(Zn)**." Chemistry - A European Journal 27.37 (2021): 9708-9715.
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