Published June 15, 1987
| Version v1
Journal article
The monoclinic perovskites Sr2CaUO6 and Ba2SrUO6. A Rietveld refinement of neutron powder diffraction data
Description
Sr2CaUO6, Mr=549.35, monoclinic, P21/n. At T=295 K, a=5.9377(2), b=6.0734(2), c=8.4563(3) A, β=90.14(1)0, V=304.95(3) A3, Z=2, Dx=5.983(1) Mg m-3, μR=0.12 [λ=2.5791(4) A, Rwp=6.36%]. Ba2SrUO6, Mr=696.33, monoclinic, P21/n. At T=295 K, a=6.2501(4), b=6.2697(4), c=8.8355(6) A, β=89.760(8)0, V=346.22(2) A3, Z=2, Dx=6.680(1) Mg m-3, μR=0.17 [λ=2.5791(4) A, Rwp=6.40%]. The structures have been refined by Rietveld analysis of neutron powder diffraction data recorded at room temperature for 147 (Sr2CaUO6) and 168 (Ba2SrUO6) reflections. The structures are of a monoclinic GdFeO3-type perovskite. The octahedra ions are in complete order. (orig.)
Additional details
Publishing Information
- Journal Title
- Acta Crystallogr., Sect. C
- Journal Volume
- 43
- Journal Issue
- 6
- Series
- Acta Crystallogr., Sect. C.
- Journal Page Range
- 1033-1036
- ISSN
- 0108-2701
- CODEN
- ACSCE
INIS
- Country of Publication
- Denmark
- Country of Input or Organization
- Denmark
- INIS RN
- 18098424
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BARIUM OXIDES; CALCIUM OXIDES; CRYSTAL STRUCTURE; EXPERIMENTAL DATA; LATTICE PARAMETERS; MEDIUM TEMPERATURE; MONOCLINIC LATTICES; NEUTRON DIFFRACTION; PEROVSKITE; POWDERS; STRONTIUM OXIDES; URANIUM OXIDES
- Descriptors DEC
- ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; DATA; DIFFRACTION; INFORMATION; MINERALS; NUMERICAL DATA; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; STRONTIUM COMPOUNDS; URANIUM COMPOUNDS