Influence of the composition on the organization of a layered perovskite-like structure of indates AIILaInO4

1Titov, Yu.A, 1Belyavina, NM, 1Slobodyanik, MS, 1Babaryk, AA, 1Timoschenko, MV
1Taras Shevchenko National University of Kyiv
Dopov. Nac. akad. nauk Ukr. 2017, 4:70-75
https://doi.org/10.15407/dopovidi2017.04.070
Section: Chemistry
Language: Ukrainian
Abstract: 

The phase Sr0.7Ca0.3LaInO4 has been synthesized by heat treatment of co-crystallized nitrates, and its layered perovskite-like structures (LPS) has been determined by X-ray powder diffraction. It is found that Sr0.7Ca0.3LaInO4 is isostructural to SrLaInO4 (sp. gr. Pbca). Influence of the composition on the organization of LPS mono-layered indates AIILnInO4 is established. It has been shown that the substitution of atoms in the A-position by smaller ones in the AIILnInO4 LPS results in an increase of the deformation degree of the (AII, Ln)O9 polyhedra, which destabilizes their LPS.

Keywords: indates AIILnInO4, layered perovskite-like structure, X-ray powder diffraction
References: 

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