Abstract
Regularities of change in the structural parameters of EuLnCuS3 (Ln = La–Nd, Sm, Gd, Ho) at an annealing temperature of 970 and 1170 K have been established. A decrease in the Ln3+ ionic radius results in the consecutive change of structural types (STs) for the compounds: α-EuLnCuS3 (Ln = La, Ce, Pr, Nd; BaLaCuS3 ST) → β-EuLnCuS3 (Ln = Ce, Pr, Nd; Ba2MnS3 ST) → γ-EuLnCuS3 (Ln = Sm, Gd, Ho; Eu2CuS3ST). The change of structural types for EuLnCuS3 leads to a jump-like change in their unit cell parameters and the transformation of coordination polyhedra shaped as a one-capped trigonal prism LnS7 (α and β phases) into an octahedron LnS6 (γ phases). The appearance of morphotropic changes correlates with the tetrad effect.
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References
L. Koscielski and J. A. Ibers, Acta Crystallogr., Sect. E 68, i52 (2012).
F. Furuuchi and Y. Hinatsu, J. Phys.: Condens. Matter 16, 5503 (2004).
O. V. Andreev and A. V. Ruseikina, Vestn. Tyumen. Gos. Univ., No. 3, 221 (2010).
A. V. Ruseikina, L. A. Solov’ev, M. S. Molokeev, and O. V. Andreev, Russ. J. Inorg. Chem. 57, 79 (2012).
A. V. Ruseikina, L. A. Solov’ev, and O. V. Andreev, Russ. J. Inorg. Chem. 57, 574 (2012).
A. V. Ruseikina, L. A. Solov’ev, and O. V. Andreev, Russ. J. Inorg. Chem. 58, 1231 (2013).
A. V. Ruseikina, L. A. Solovyev, O. V. Andreev, and A. A. Kislitsyn, Russ. J. Inorg. Chem. 59, 1109 (2014).
Yu. A. Murashko, A. V. Ruseikina, A. A. Kislitsyn, and O. V. Andreev, Inorg. Mater. 51, 1213 (2015).
A. V. Ruseikina, Zh. A. Demchuk, and A. A. Kislitsyn, Vestn. Tyumen. Gos. Univ., No. 5, 19 (2012).
T. Brennan and J. A. Ibers, J. Solid State Chem. 97, 377 (1992).
P. Lemoine, D. Carre, and M. Guittard, Acta Crystallogr., Sect. C 42, 390 (1986).
A. V. Ruseikina, Russ. J. Inorg. Chem. 61, 1403 (2016).
D. Chareev, E. Osadchii, T. Kuzmicheva, et al., CrystEngComm 15, 1989 (2013).
K. Brandenburg, “DIAMOND,” Visual Crystal Structure Information System CRUSTAL IMPACT, Postfach, 1251, D-53002 Boon.
A. V. Ruseikina, L. A. Solov’ev, and O. V. Andreev, Russ. J. Inorg. Chem. 59, 169 (2014).
A. V. Ruseikina and Zh. A. Demchuk, Russ. J. Inorg. Chem. 62, 27 (2017).
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Original Russian Text © A.V. Ruseikina, O.V. Andreev, 2017, published in Zhurnal Neorganicheskoi Khimii, 2017, Vol. 62, No. 2, pp. 165–172.
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Ruseikina, A.V., Andreev, O.V. Regularities of change in the structural parameters of EuLnCuS3 (Ln = La–Nd, Sm, Gd, Ho). Russ. J. Inorg. Chem. 62, 160–167 (2017). https://doi.org/10.1134/S0036023617020140
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DOI: https://doi.org/10.1134/S0036023617020140