Borohydride Anions as Terminal Ligands on a Fe/Mo/S Cluster. Synthesis, Structure, and Characterization of the [(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4 Double-Fused Cubane

Borohydride Anions as Terminal Ligands on a Fe/Mo/S Cluster. Synthesis, Structure, and Characterization of the [(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4 Double-Fused Cubane

The synthesis and structure of the first Mo/Fe/S/BH4 cluster is reported. Reaction of (Cl4-cat)2Mo2Fe6S8(PPr3)6 with 4 equiv of Bu4NBH4 results in the formation of [(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4 (Cl4-cat = tetrachloro-catecholate) which has been fully characterized. X-ray structural determin...

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Veröffentlicht in:Inorganic chemistry 2004-10, Vol.43 (21), p.6508-6510
Hauptverfasser: Koutmos, Markos, Coucouvanis, Dimitri
Format: Artikel
Sprache:eng
Schlagworte:
Borohydrides - chemistry
Crystallography, X-Ray
Iron - chemistry
Ligands
Molecular Conformation
Molybdenum - chemistry
Nitrogenase - chemistry
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Sulfur - chemistry
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Zusammenfassung:The synthesis and structure of the first Mo/Fe/S/BH4 cluster is reported. Reaction of (Cl4-cat)2Mo2Fe6S8(PPr3)6 with 4 equiv of Bu4NBH4 results in the formation of [(Cl4-cat)(PPr3)MoFe3S4(BH4)2]2(Bu4N)4 (Cl4-cat = tetrachloro-catecholate) which has been fully characterized. X-ray structural determination of this double-fused cubane reveals four BH4 - ligands bound to four Fe atoms in a bidentate fashion. A synopsis of the solution characterization as well as the reactivity of this cluster is also presented.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic049275w