(IUCr) Crystallography Journals Online

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Acta Cryst. (2009). E65, i71 [ doi:10.1107/S1600536809036198 ]

Hexaaquairon(II) bis[fac-tribromidotricarbonylferrate(II)]

E. Becker, K. Kirchner and K. Mereiter

Abstract: In the title compound, [Fe(H₂O)₆][FeBr₃(CO)₃]₂, both Fe atoms have an octahedral coordination and the bromide carbonyl complex has a fac-stereochemistry. The [Fe(H₂O)₆]²⁺ octahedron has point symmetry $\\overline{1}$ and is slightly compressed along one O-Fe-O axis. The [FeBr₃(CO)₃]^- anion has point symmetry 1 and mean bond lengths of Fe-Br = 2.455 (5) Å and Fe-C = 1.809 (2) Å. The cation and anion complexes are mutually linked via O-HBr hydrogen bonds with OBr distances of 3.340 (3) to 3.388 (3) Å.

Online 12 September 2009