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ChemInform Abstract: Synthesis and Crystal Structure of the A6B5O18 Perovskite-Like Compounds.
Authors:V. V. Polubinskii  Y. A. Titov  N. M. Belyavina  V. Ya. Markiv  M. S. Slobodyanik  V. V. Chumak  O. I. Nakonechna
Affiliation:Taras Shevchenko Natl. Univ., Kiev 01601, Ukraine
Abstract:Single phase Ba5KNb5O18 (I) is prepared by solid state reaction of Ba5Nb4O15 and KNbO3 (1370 K, 2 h), while Sr6Nb4SnO18 (II) results from calcination of the coprecipitated metal hydroxycarbonates (1570 K, 2 h).
Keywords:structure (solids and liquids)  electric properties, superconductors, semiconductors  niobium, Nb  tin, Sn  alkaline earth metals
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