Journal
CHEMICAL SCIENCE
Volume 10, Issue 5, Pages 1322-1331Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc04138e
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Funding
- U.S. National Institute of Health [1F32GM099316]
- U.S. National Science Foundation [CHE-1151726, CHE-1609434]
- FWO
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Stoichiometric reduction reactions of two metal-organic frameworks (MOFs) by the solution reagents MCp*(2) (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.
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