Acta Cryst. (2007). E63, m2480-m2481  [ doi:10.1107/S1600536807042857 ]

-Sulfato-1O:2O--oxo-bis[tris(2-pyridylmethyl)amine-⁴N,N',N'',N''']diiron(III) diperchlorate acetonitrile/water (0.75/0.25) solvate

C. M. Smith and R. E. Norman

Abstract: The title complex, [Fe₂(C₁₈H₁₈N₄)₂O(SO₄)](ClO₄)₂·0.75C₂H₃N·0.25H₂O, consists of two perchlorate ions, a solvent cavity with acetonitrile and water (disordered 3/1), and an Fe complex dication. The dication is a diiron(III) unit containing an oxo bridge and a sulfato bridge. The iron(III) centers are pseudo-octahedral, six-coordinate, with tris(2-pyridylmethyl) amine (TPA) providing four N atoms. The distances and angles are typical for bent -oxo-bridged TPA complexes. The complex was the unexpected result of a reaction designed to produce a -sulfido--carboxylato-diiron center.

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