Synthesis and crystal structure of two-layer indotitanates Sr2LnInTiO7
DOI:
https://doi.org/10.15407/dopovidi2014.06.120Keywords:
crystal structure, synthesis, two-layer indotitanatesAbstract
The extent of a region of compounds with layered perovskite-like structures (LPS) in the row of two-layer perovskites Sr2LnInTiO7 is determined. The new indotitanates Sr2LnInTiO7 (Ln – La, Pr, Nd, Sm) have been synthesized by heat treatment of equimolar mixtures Sr2TO4 + LnInO3, and their crystal LPS determined by X-ray powder diffraction. It is found that the LPS of Sr2LnInTiO7 (Ln – La, Pr, Nd, Sm) belongs to the BaLa2In2O7 – type structure (sp. gr. P42/mnm). The final RB values are equal to 0.060–0.069. The peculiarities of the two-layer LPS of Sr2LnInTiO7 are analyzed, and the composition – constitution correlations of the LPS have been identified.
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Schaak R. E., Mallouk T. E. Chem. Mater., 2002, 14, No. 4: 1455–1471.
Aleksandrov K. S., Beznosikov B. V. Perovskites. Present and future. Novosibirsk: Nauka SO RAN, 2004 (in Russian).
Titov Yu. O., Slobodyanik M. S., Kraevska Ya. A. Ukr. khim. zhurn., 2008, 74, No. 7: 17–22 (in Russian).
Markiv V. Ya., Beliavina N. M. Hardware and software system for the study of polycrystalline materials by their diffraction spectra. Proceedins of the 2nd International conference "SFM-97", Lviv: Vyd-vo nauk. tov-va im. T. G. Shevchenko, 1997: 260–261 (in Ukrainian).
Wells A. Structural inorganic chemistry. In 3th vols. Vol. 2. Moscow: Mir, 1987: 321–323 (in Russian).
Powder Diffraction File 2003. PDF - 2, Datebase Sets 1–89.
Caldes M., Michel C., Rouillon T. et. al. J. Mater. Chem., 2002, 12, No. 3: 473–476. https://doi.org/10.1039/b108987k
Shannon R. D. Acta Crystallogr., 1976, A32, No. 5, 751–767. https://doi.org/10.1107/S0567739476001551
Ruddlesden S. N., Popper P. Acta Crystallodr., 1958, 11, No. 1: 54–55. https://doi.org/10.1107/S0365110X58000128
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