Abstract
Three novel trinuclear mixed-transition-metal complexes of Fe(III), Co(III, II), Ni(II) and Cr(III)), with pyridine-2-amidoxime (Hpa) ligand are synthesized, i.e. [FeNi2(pa)6]Cl·15H2O (1), [CrNi2(pa)6]OH·5H2O (2), and [CoCo2(pa)6]NO3 (3). These complexes are characterized by variable-temperature magnetic susceptibility, electrochemistry, and single crystal X-ray diffraction methods. 1 and 2 are heteronuclear metal clusters in the perfect linear arrangement, i.e. [NiII⋯FeIII⋯NiII and [NiII⋯CrIII⋯NiII] respectively, while 3 is linear [CoII⋯CoIII⋯CoII] trinuclear. Theoretical calculations are employed to successfully account for the experimental results of the variable temperature magnetic susceptibility.
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Original Russian Text © 2018 J.-W. Ran, Y.-P. Tong.
The text was submitted by the authors in English. Zhurnal Strukturnoi Khimii, Vol. 59, No. 6, pp. 1486–1492, July-August, 2018.
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Ran, JW., Tong, YP. Crystal Structures, Magnetic Properties, and Theoretical Investigations of Three Linear Cluster Complexes with Pyridine-2-Amidoxime. J Struct Chem 59, 1433–1439 (2018). https://doi.org/10.1134/S0022476618060264
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DOI: https://doi.org/10.1134/S0022476618060264