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Der “hoch oxidierte” [Fe4S4(Sar)4]‐Cluster ,, der nur FeIII‐Zentren enthält, wurde synthetisiert und charakterisiert. K. Tatsumi et al. beschreiben in ihrer Zuschrift auf S. 11768 ff. die Isolierung dieses FeIII‐Clusters, der darauf hindeutet, dass auch natürliches Fe4S4‐Ferredoxin ausschließlich mit FeIII‐Zentren vorliegen könnte
An unprecedented, super oxidized all‐ferric iron–sulfur cubanoid cluster with all terminal thiolates, Fe4S4(STbt)4 (3) [Tbt=2,4,6‐tris{bis(trimethylsilyl)methyl}phenyl], has been isolated from the reaction of the bis‐thiolate complex Fe(STbt)2 (2) with elemental sulfur. This cluster 3 has been characterized by X‐ray crystallography, zero‐field 57Fe Mössbauer spectroscopy, cyclic voltammetry, and other...
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