Information card for entry 2300498

Structure parameters

• Common name: Sodium Potassium Niobate oxide
• Chemical name: Sodium Potassium Niobate oxide
• Formula: K0.5 Na0.5 Nb O3
• Calculated formula: K0.5 Na0.5 Nb O3
• Title of publication: Mode-crystallography analysis of the crystal structures and the low- and high-temperature phase transitions in Na~0.5~K~0.5~NbO~3~
• Authors of publication: Orayech, B.; Faik, A.; López, G. A.; Fabelo, O.; Igartua, J. M.
• Journal of publication: Journal of Applied Crystallography
• Year of publication: 2015
• Journal volume: 48
• Journal issue: 2
• a: 5.6085 ± 0.0003 Å
• b: 5.6085 ± 0.0003 Å
• c: 6.9183 ± 0.0006 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 188.46 ± 0.02 ų
• Cell temperature: 10 K
• Ambient diffraction temperature: 10 K
• Number of distinct elements: 4
• Space group number: 160
• Hermann-Mauguin space group symbol: R 3 m :H
• Hall space group symbol: R 3 -2"
• Residual factor R(I) for significantly intense reflections: 7.3147
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 2.52277 Å
• Diffraction radiation type: ConstantWavelengthNeutronDiffraction
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No