Issue 5, 2019

Sodium-coupled electron transfer reactivity of metal–organic frameworks containing titanium clusters: the importance of cations in redox chemistry

Abstract

Stoichiometric reduction reactions of two metal–organic frameworks (MOFs) by the solution reagents Image ID:c8sc04138e-t1.gif (M = Cr, Co) are described. The two MOFs contain clusters with Ti8O8 rings: Ti8O8(OH)4(bdc)6; bdc = terephthalate (MIL-125) and Ti8O8(OH)4(bdc-NH2)6; bdc-NH2 = 2-aminoterephthalate (NH2-MIL-125). The stoichiometry of the redox reactions was probed using solution NMR methods. The extent of reduction is greatly enhanced by the presence of Na+, which is incorporated into the bulk of the material. The roughly 1 : 1 stoichiometry of electrons and cations indicates that the storage of e in the MOF is tightly coupled to a cation within the architecture, for charge balance.

Graphical abstract: Sodium-coupled electron transfer reactivity of metal–organic frameworks containing titanium clusters: the importance of cations in redox chemistry

Supplementary files

Article information

Article type
Edge Article
Submitted
18 Sept. 2018
Accepted
17 Nov. 2018
First published
19 Nov. 2018
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2019,10, 1322-1331

Sodium-coupled electron transfer reactivity of metal–organic frameworks containing titanium clusters: the importance of cations in redox chemistry

C. T. Saouma, C. Tsou, S. Richard, R. Ameloot, F. Vermoortele, S. Smolders, B. Bueken, A. G. DiPasquale, W. Kaminsky, C. N. Valdez, D. E. De Vos and J. M. Mayer, Chem. Sci., 2019, 10, 1322 DOI: 10.1039/C8SC04138E

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