Abstract
Iron acetate of composition [Fe3O(CH3COO)6(H2O)3][AuCl4]·6H2O (I) was synthesized and investigated by X-ray diffraction analysis and Mössbauer spectroscopy. The [Fe3O(CH3COO)6(H2O)3]+ complex cation has a structure typical for μ3-O bridged trinuclear ferric compounds with iron atoms lying at the vertices of a regular triangle with an oxygen atom at the center. The iron atoms are each coordinated by 4 oxygen atoms of the four bridging carboxylic groups, the μ3-O bridging atom, and the coordinated water molecule in the trans-position to the latter. In the trinuclear cation, the Fe(III) ions are coupled by antiferromagnetic exchange interactions with the exchange parameter J = -29.0 cm –1 (HDVV model for D 3h symmetry). The specific role of the solvate water molecules in structure formation is discussed.
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Turte, K.I., Shova, S.G., Meriacre, V.M. et al. Synthesis and Structure of Trinuclear Iron Acetate [Fe3O(CH3COO)6(H2O)3][AuCl4]·6H2O. Journal of Structural Chemistry 43, 108–117 (2002). https://doi.org/10.1023/A:1016082018299
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DOI: https://doi.org/10.1023/A:1016082018299