A 3:1 Site-Differentiated [4Fe-4S] Cluster Immobilized on a Self-Assembled Monolayer

A 3:1 site-differentiated [4Fe-4S] cluster is immobilized on a thiol-functionalized self-assembled monolayer (SAM) on Au(111) by thiol−thiolate exchange chemistry. Fe 2p signals observed by X-ray photoelectron spectroscopy support the presence of [4Fe-4S] clusters at the SAM surface; further evidenc...

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Veröffentlicht in:	Journal of physical chemistry. C 2008-11, Vol.112 (44), p.17225-17230
Hauptverfasser:	van der Geer, Erwin P. L, van den Brom, Coenraad R, Arfaoui, Imad, Houssiau, Laurent, Rudolf, Petra, van Koten, Gerard, Klein Gebbink, Robertus J. M, Hessen, Bart
Format:	Artikel
Sprache:	eng
Schlagworte:	C: Surfaces, Interfaces, Catalysis
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A 3:1 site-differentiated [4Fe-4S] cluster is immobilized on a thiol-functionalized self-assembled monolayer (SAM) on Au(111) by thiol−thiolate exchange chemistry. Fe 2p signals observed by X-ray photoelectron spectroscopy support the presence of [4Fe-4S] clusters at the SAM surface; further evidence comes from the detection of n-Bu4N+ and cluster-derived species by secondary-ion mass spectrometry. The immobilizing interaction is sufficiently strong to allow the study of [4Fe-4S] clusters at solid−liquid interfaces.
ISSN:	1932-7447 1932-7455
DOI:	10.1021/jp805532m