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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; ... Show more Show less
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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.
Date issued
2017-03
URI
http://hdl.handle.net/1721.1/115120
Department
Massachusetts Institute of Technology. Department of Chemistry
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
ISSN
0002-7863
1520-5126

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