Abstract
Two novel μ-oxo-di-μ-carboxylato-bridged iron(III) complexes of [Fe2(bpea)2(PhCO2)2(μ-O)] (ClO4)2·C2H5OH (1) and [Fe2(bpma)2(ClCH2COO)2(μ-O)](ClO4)2· H2O (2) (bpea = N,N-bis(2-pyridylmethyl)ethylamine, bpma = N,N-bis(2-pyridylmethyl)methylamine), have been synthesized and determined by X-ray diffraction. Complex (1) crystallizes in the Orthorhombic space group P nma with d(Fe···Fe) of 3.094 A and average d(Fe–Obbridge) of 1.805 A; Complex (2) crystallizes in the Monoclinic space group C 2/c, with d(Fe···Fe) of 3.109 A and average d(Fe–Obbridge) of 1.794 A. The magnetic studies indicate a stronger antiferromagnetic interaction between iron(III) ions through μ-oxo-di-μ-carboxylato-bridge for complex (1), with J = − 141.6 cm−1.
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