Crystal structure of isovalent substituted layered indates Ba1−xSrxLa2In2O7

Authors

  • Yu. A. Titov Taras Shevchenko National University of Kiev
  • N. M. Belyavina Taras Shevchenko National University of Kiev
  • M. S. Slobodyanik Taras Shevchenko National University of Kiev
  • V.V. Chumak Ivan Franko State University of Zhytomyr

DOI:

https://doi.org/10.15407/dopovidi2016.06.095

Keywords:

isomorphous substitution, layered perovskite-like structure, X-ray powder diffraction

Abstract

Conditions of isovalent substitution of barium atoms in layered perovskite-like structure (LPS) of BaLa2In2O7 by the type Ba1−xSrxLa2In2O7 (0 ≤ x ≤ 0.75) are determined. The LPS of indates Ba1−xSrxLa2In2O7 (x = 0.2, 0.5, and 0.7) are determined by X-ray powder diffraction. It is found that the LPS of Ba1−xSrxLa2In2O7 belongs to the SrLn2Sc2O7-type structure (sp. gr. Fmmm), and the interrelations composition — constitution of LPS are determined. It is shown that the increase of the strontium content in LPS Ba1−xSrxLa2In2O7 increases a degree of deformation of interblock polyhedra AO9 and decreases the length of the interblock distance A(2)−O(2) in LPS Ba1−xSrxLa2In2O7.

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References

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Published

03.11.2024

How to Cite

Titov, Y. A., Belyavina, N. M., Slobodyanik, M. S., & Chumak, V. (2024). Crystal structure of isovalent substituted layered indates Ba1−xSrxLa2In2O7. Reports of the National Academy of Sciences of Ukraine, (6), 95–102. https://doi.org/10.15407/dopovidi2016.06.095

Issue

No. 6 (2016): Reports of the National Academy of Sciences of Ukraine

Section

Chemistry

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