Abstract
Heterometallic complexes Fe2MO(Piv)6(HPiv)3 (M = Ni, Co) have been studied by XPS. The complexes are identified as high-spin complexes with metal atoms in oxidation states M(II) and M(III). A change in the ligand environment of metal atoms has an effect on both the energetic state of metal atoms and the XPS pattern. The substitution of a Co atom for the nickel atom in the heterometallic complexes changes the XPS pattern of iron and their magnetic state. For the Fe2MO(Piv)6(HPiv)3 complexes, quantum-chemical calculations have been performed at the density functional theory (DFT) level. In combination with XPS and magnetochemistry data, the quantum-chemical calculation demonstrates that the Fe, Ni, and Co atoms in the trinuclear complexes are in the high-spin local state and that the ground state is dominated by antiferromagnetic exchange interaction.
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Original Russian Text © T.M. Ivanova, I.N. Shcherbakov, R.V. Linko, M.A. Kiskin, I.S. Evstifeev, A.A. Sidorov, V.M. Novotortsev, I.L. Eremenko, 2013, published in Zhurnal Neorganicheskoi Khimii, 2013, Vol. 58, No. 8, pp. 1061–1067.
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Ivanova, T.M., Shcherbakov, I.N., Linko, R.V. et al. XPS study of the electronic structure of heterometallic complexes Fe2MO(Piv)6(HPiv)3 (M = Ni, Co). Russ. J. Inorg. Chem. 58, 945–950 (2013). https://doi.org/10.1134/S0036023613080093
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DOI: https://doi.org/10.1134/S0036023613080093