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- W2034652534 abstract "Abstract Four new Fe(II)-Fe(II) μ-terephthalato binuclear complexes have bcen synthesized and characterized, namely [Fe2(TPHA)L4]SO4, [L = 2, 2′-bipyridine (bpy); 1, 10-phenanthroline (phen); 5-methyl-l,10-phenanthroline (Me-phen); 5-nitro-1, 10-phenanthroline (NO2-phen)], where TPHA is the terephthalate dianion. Based on elemental analyses, molar conductance and magnetic moments of room-temperature measurements, and spectroscopic studies, extended TPHA-bridged structures consisting of two iron(II) ions, each in an octahedral environment, are proposed for these complexes. The [Fe2(TPHA)(bpy)4]SO4 (1) and [Fe2(TPHA)(phen)4]SO4 (2) complexes were characterized by variable temperature magnetic susceptibility (4-300 K) measurements and the observed data were successfully simulated by the equation based on the spin Hamiltonian operator, H = -2JS 1·S2, giving the exchange integrals J = - 3.92 cm−1 for (1 and J = - 2.46 cm for (2). This result indicates the presence of a weak antiferromagnetic spin-exchange interaction between the metal ions within each molecule." @default.
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- W2034652534 date "1999-01-01" @default.
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- W2034652534 title "Synthesis and Magnetic Properties of Terephthalato-Bridged Binuclear Iron(II) Complexes" @default.
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- W2034652534 doi "https://doi.org/10.1080/00945719909349441" @default.
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