Synthesis of Isomorphous Prototypic [CrFe_2O(AcO)_6(TEP)_3]Cl and [CrFe_2O(AcO)_6(TMP)_3]Cl As Oxo-Centered Hetero Tri-Nuclear Carboxylate Complexes

Authors: MASSOUD RAFIZADEH, REZA TAYEBEE, VAHID AMANI

Abstract: [CrFe_2O(AcO)_6(TEP)_3]Cl, (1), and [CrFe_2O(AcO)_6(TMP)_3]Cl, (2), were prepared by replacing 3 water molecules in the [CrFe_2O(AcO)_6(H_2O)_3]Cl complex with triethyl- and trimethyl-phosphates, respectively. FT-IR spectroscopy confirmed an oxo-centered, carboxylate-bridged, heteronuclear triangular structure for the title compounds. M_3O and MO_4 units adopted D_{3h} and D_{4h} local symmetry, respectively, and are surrounded by 6 bridging acetates with C_{2v} local symmetry.

Keywords: Iron, chromium, infrared, synthesis, band assignment

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