Abstract
Voronoi-Dirichlet (VD) polyhedra and the intersecting spheres method are used to study stereochemical features of lanthanides (Ln) surrounded by fluorine atoms in the structures of 118 compounds. The coordination numbers of Ln atoms range from 6 to 12. Nine types of coordination polyhedra LnFn are found; depending on the CN of Ln, the Ln-F bond length can change by 0.2–0.7 Å. Despite the considerable differences in bond lengths, the volume of the VD polyhedra of Ln atoms depends only on their nature and oxidation state. The change in the radii of the spherical domains whose volume is equal to that of the VD polyhedra of Ln atoms shows the tetrad effect.
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Original Russian Text © A.V. Vologzhanina, D.V. Pushkin, V.N. Serezhkin, 2006, published in Zhurnal Neorganicheskoi Khimii, 2006, Vol. 51, No. 5, pp. 813–824.
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Vologzhanina, A.V., Pushkin, D.V. & Serezhkin, V.N. Coordination polyhedra LnFn (Ln = La-Lu) in crystal structures. Russ. J. Inorg. Chem. 51, 747–758 (2006). https://doi.org/10.1134/S0036023606050123
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DOI: https://doi.org/10.1134/S0036023606050123