Criteria of existence of one- and two-layer compounds (MeII, Ln)n+1BnO3n+1

1Titov, Yu.A, 1Slobodyanik, MS, 1Polubinskii, VV
1Taras Shevchenko National University of Kyiv
Dopov. Nac. akad. nauk Ukr. 2018, 1:80-85
https://doi.org/10.15407/dopovidi2018.01.080
Section: Chemistry
Language: Ukrainian
Abstract: 

On the basis of the analysis and the generalization of data on the synthesized by the authors and known (MeII, Ln)n+1BnO3n+1-type compounds with layered perovskite-like structure (LPS), the necessary conditions of existence of compounds and phases compositions (MeII, Ln)n+1BIIInO3n+1 and (MeII, Ln)n+1(BIII,BIV)nO3n+1 (n = 1 and 2) with LPS are determined. They account for the ratio of the size of atoms and the ionicity of bonds A — O and B — O in crystals and substantially simplify the directed search for new layered perovskite-like compounds and (MeII, Ln)n+1BnO3n+1-type phases.

Keywords: (MeII; Ln)n+1BnO3n+1-type sompounds, criteria of existence, layered structure
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