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Amides Do Not Always Work: Observation of Guest Binding in an Amide-Functionalized Porous Metal–Organic Framework

Benson, Oguarabau; da Silva, Ivan; Argent, Stephen P.; Cabot, Rafel; Savage, Mathew; Godfrey, Harry G.W.; Yan, Yong; Parker, Stewart F.; Manuel, Pascal; Lennox, Matthew J.; Mitra, Tamoghna; Easun, Timothy L.; Lewis, William; Blake, Alexander J.; Besley, Elena; Yang, Sihai; Schr�der, Martin

Amides Do Not Always Work: Observation of Guest Binding in an Amide-Functionalized Porous Metal–Organic Framework Thumbnail


Authors

Oguarabau Benson

Ivan da Silva

Rafel Cabot

Mathew Savage

Harry G.W. Godfrey

Yong Yan

Stewart F. Parker

Pascal Manuel

Matthew J. Lennox

Tamoghna Mitra

Timothy L. Easun

William Lewis

Alexander J. Blake

Sihai Yang

Martin Schr�der



Abstract

An amide-functionalised metal organic frame-work (MOF) material, MFM-136, shows a high CO2 uptake of 12.6 mmol g-1 at 20 bar and 298 K. MFM-136 is the first example of acylamide pyrimidyl isophthalate MOF without open metal sites, and thus provides a unique platform to study guest bind-ing, particularly the role of free amides. Neutron diffraction reveals that, surprisingly, there is no direct binding between the adsorbed CO2/CH4 molecules and the pendant amide group in the pore. This observation has been confirmed un-ambiguously by inelastic neutron spectroscopy. This suggests that introduction of functional groups solely may not neces-sarily induce specific guest-host binding in porous materials, but it is a combination of pore size, geometry, and functional group that leads to enhanced gas adsorption properties.

Citation

Benson, O., da Silva, I., Argent, S. P., Cabot, R., Savage, M., Godfrey, H. G., …Schröder, M. (2016). Amides Do Not Always Work: Observation of Guest Binding in an Amide-Functionalized Porous Metal–Organic Framework. Journal of the American Chemical Society, 138(45), 14828-14831. https://doi.org/10.1021/jacs.6b08059

Journal Article Type Article
Acceptance Date Aug 3, 2016
Online Publication Date Sep 26, 2016
Publication Date Nov 16, 2016
Deposit Date Nov 25, 2016
Publicly Available Date Nov 25, 2016
Journal Journal of the American Chemical Society
Print ISSN 0002-7863
Electronic ISSN 1520-5126
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 138
Issue 45
Pages 14828-14831
DOI https://doi.org/10.1021/jacs.6b08059
Public URL https://nottingham-repository.worktribe.com/output/828190
Publisher URL http://pubs.acs.org/doi/abs/10.1021/jacs.6b08059
Contract Date Nov 25, 2016

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