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Characterization of a monocyanide model of FeFe hydrogenases - highlighting the importance of the bridgehead nitrogen for catalysis
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics.
2016 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 45, no 48, p. 19242-19248Article in journal (Refereed) Published
Abstract [en]

An azadithiolate bridged monocyanide derivative [Fe-2(adt)(CO)(5)(CN)](-) of [Fe-2(adt)(CO)(4)(CN)(2)](2-) has been prepared and extensively characterized as a model of the [FeFe]-hydrogenase active site, using a combination of FTIR spectroscopy, electrochemical methods and catalytic assays with chemical reductants. The presence of two basic nitrogen sites opens up multiple protonation pathways, enabling catalytic proton reduction. To our knowledge [Fe-2(adt)(CO)(5)(CN)](-) represents the first example of a cyanide containing [FeFe]-hydrogenase active site mimic capable of catalytic H-2 formation in aqueous media.

Place, publisher, year, edition, pages
2016. Vol. 45, no 48, p. 19242-19248
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-314063DOI: 10.1039/c6dt02061eISI: 000390470400010PubMedID: 27549900OAI: oai:DiVA.org:uu-314063DiVA, id: diva2:1068946
Funder
Swedish Research Council, 621-2014-5670Swedish Research Council Formas, 213-2014-880Wenner-Gren Foundations
Available from: 2017-01-26 Created: 2017-01-26 Last updated: 2017-11-29Bibliographically approved

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