Abstract
In order to determine the crystal- forming factors and reasons for irregular coordination of Tl+ cations the crystallographic analysis of the structure of AgTlTe (I), minerals vrbaite Hg3Tl4As8Sb2S20 (II) and gabrielite Tl2AgCu2As3S7 (III) is performed. For I and II the skeleton translational sublattices of all atoms in the structure with the determining contribution of Tl+ and anions are found; for II and III the cationic and anionic along with Tl+ sublattices, which form the structure, are found. The incorporation of cations into the Tl+ coordination environment is classified as a consequence of the structure-forming ordering of Tl cations and anions (S, Te) in one matrix, i.e. as the effect of their ordered packing.
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Original Russian Text © 2014 S. V. Borisov, S. A. Magarill, N. V. Pervukhina.
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Translated from Zhurnal Strukturnoi Khimii, Vol. 55, No. 5, pp. 910–917, September–October, 2014.
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Borisov, S.V., Magarill, S.A. & Pervukhina, N.V. Crystal formation features in a series of chalcogenide structures with monovalent Tl. Ordered packing effect in Tl coordination. J Struct Chem 55, 863–870 (2014). https://doi.org/10.1134/S0022476614050102
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DOI: https://doi.org/10.1134/S0022476614050102