Structural chemistry of Sr 3Cr 2WO 9, Ca 3Cr 2WO 9, and Ba 3Cr 2WO 9

We have studied the preparation and crystallographic structure of three perovskite-type compounds: Sr 3Cr 2WO 9, cubic, the lattice parameter of which is a = 7.812Å; Ca 3Cr 2WO 9, tetragonal, the lattice parameters of which are a = 5.408 Å and c = 7.635Å; and Ba 3Cr 2WO 9, hexagonal, the lattice par...

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Bibliographic Details
Published inJournal of solid state chemistry Vol. 14; no. 4; pp. 354 - 358
Main Authors Ballutaud-Harari, Dominique, Poix, Paul
Format Journal Article
LanguageEnglish
Published Elsevier Inc 1975
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Summary:We have studied the preparation and crystallographic structure of three perovskite-type compounds: Sr 3Cr 2WO 9, cubic, the lattice parameter of which is a = 7.812Å; Ca 3Cr 2WO 9, tetragonal, the lattice parameters of which are a = 5.408 Å and c = 7.635Å; and Ba 3Cr 2WO 9, hexagonal, the lattice parameters of which are a = 5.691 Å and c = 13.957Å. We have compared these three structures and shown the relationship between the dimensions of the alkaline-earth metal and the existence of the different structures.
ISSN:0022-4596
1095-726X
DOI:10.1016/0022-4596(75)90055-9