Tris(chloranilato)ferrate(III) Anionic Building Block Containing the (Dihydroxo)oxodiiron(III) Dimer Cation: Synthesis and Characterization of [(TPA)(OH)Fe^IIIOFe^III(OH)(TPA)][Fe(CA)₃]_0.5(BF₄)_0.5·1.5MeOH·H₂O [TPA = tris(2-

[(TPA)(OH)FeIIIOFeIII(OH)(TPA)][Fe(CA)3]0.5(BF4)0.5·1.5MeOH·H2O (1) which possesses both the [FeIII(CA)3]3- (CA= chloranilate) and hydroxooxoiron(III) ions has had its structure determined by single-crystal X-ray diffraction. The 2−300 K magnetic susceptibility of 1 provides the magnetic parameters, g = 2.07, J/kB = −165 K (115 cm-1), θ = −1 K, and the spin impurity, ρ = 0.05, which indicates a strong antiferromagnetic interaction between iron(III) ions via the oxo anion.