The Organic Secondary Building Unit: Strong Intermolecular π Interactions Define Topology in MIT-25, a Mesoporous MOF with Proton-Replete Channels
Author(s)
Fielding, Alistair J.
Walsh, Aron
O’Keeffe, Michael
Park, Sarah Sunah
Hendon, Christopher H
Dinca, Mircea
Date Issued
March 2017
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Citation
Park, Sarah S. et al. “The Organic Secondary Building Unit: Strong Intermolecular π Interactions Define Topology in MIT-25, a Mesoporous MOF with Proton-Replete Channels.” Journal of the American Chemical Society 139, 10 (March 2017): 3619–3622 © 2017 American Chemical Society
Version
Author's final manuscript
Abstract
The structure-directing role of the inorganic secondary building unit (SBU) is key for determining the topology of metal–organic frameworks (MOFs). Here we show that organic building units relying on strong π interactions that are energetically competitive with the formation of common inorganic SBUs can also play a role in defining the topology. We demonstrate the importance of the organic SBU in the formation of Mg₂H₆(H₃O)(TTFTB)₃(MIT-25), a mesoporous MOF with the new ssp topology. A delocalized electronic hole is critical in the stabilization of the TTF triad organic SBUs and exemplifies a design principle for future MOF synthesis.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
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Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/jacs.6b13176
