SrTa4O11: a Rietveld Refinement Using Neutron Powder Diffraction Data

Autor:	D. J. W. IJdo, R. B. Helmholdt, G. W. J. C. Heunen
Rok vydání:	1995
Předmět:	Neutron powder diffraction Strontium Crystallography chemistry Octahedron Rietveld refinement chemistry.chemical_element General Medicine Tantalum oxide Crystal structure General Biochemistry Genetics and Molecular Biology Coordination geometry
Zdroj:	Acta Crystallographica Section C Crystal Structure Communications. 51:1723-1725
ISSN:	0108-2701
Popis:	Rietveld refinement using neutron powder diffraction data for the low-temperature form of strontium tantalum oxide, SrTa 4 O 11 , resulted in R wp = 3.10%. The structure is of the CaTa 4 O 11 type and consists of layers of Ta(2)O 7 pentagonal bipyramids sharing edges, as found in U 3 O 8 . Between the layers lie Sr atoms with distorted cubic coordination geometry and Ta(1) atoms with distorted octahedral coordination geometry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f9d4ae17f84399bac6db369b957f7c5f https://doi.org/10.1107/s0108270195004264 Zobrazit plný text záznamu Plný text