Hexaaqua-iron(II) bis-[fac-tribromido-tricarbonyl-ferrate(II)]

Abstract

In the title compound, [Fe(H2O)6][FeBr3(CO)3]2, both Fe atoms have an octa-hedral coordination and the bromide carbonyl complex has a fac-stereochemistry. The [Fe(H2O)6]2+ octa-hedron has point symmetry 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- H⋯Br hydrogen bonds with O⋯Br distances of 3.340 (3) to 3.388 (3) Å.