Abstract
In the structure of Tl2S, the pseudo translational sublattice of Tl and S atoms with a rhombohedral primitive subcell a P = 3.09 Å, αP = 81.87° is determined. As opposed to the common PbS structure type, in which single (close-packed) layers of cations and anions alternate, in the structure of Tl2S, there is an alternation of double cationic layers with single anionic layer, while the general geometry of atomic positions (skeleton) of the PbS structure type is retained. Therewith, the atoms of a part of cationic layers occupy the atomic sites of the anionic layers and vice versa.
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Original Russian Text Copyright © 2013 by S. V. Borisov, S. A. Magarill, N. V. Pervukhina
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Translated from Zhurnal Strukturnoi Khimii, Vol. 54, No. 5, pp. 926–930, September–October, 2013.
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Borisov, S.V., Magarill, S.A. & Pervukhina, N.V. X-ray crystallographic analysis of Tl2S: An example of layered isomorphism. J Struct Chem 54, 963–967 (2013). https://doi.org/10.1134/S0022476613050181
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DOI: https://doi.org/10.1134/S0022476613050181