Information card for entry 4123008

Structure parameters

• Common name: Potassium Iron Arsenide
• Formula: As2 Fe2 K
• Calculated formula: As2 Fe1.854 K
• Title of publication: Facile Synthesis of Ba1-xKxFe2As2 Superconductors via Hydride Route.
• Authors of publication: Zaikina, Julia V.; Batuk, Maria; Abakumov, Artem M.; Navrotsky, Alexandra; Kauzlarich, Susan M.
• Journal of publication: Journal of the American Chemical Society
• Year of publication: 2014
• Pages of publication: 141121132150009
• a: 3.849 ± 0.002 Å
• b: 3.849 ± 0.002 Å
• c: 13.867 ± 0.003 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 205.44 ± 0.16 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 3
• Space group number: 139
• Hermann-Mauguin space group symbol: I 4/m m m
• Hall space group symbol: -I 4 2
• Residual factor for all reflections: 0.1171
• Residual factor for significantly intense reflections: 0.083
• Weighted residual factors for significantly intense reflections: 0.06
• Weighted residual factors for all reflections included in the refinement: 0.061
• Goodness-of-fit parameter for all reflections: 1.76
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 0.41383 Å
• Diffraction radiation type: synchrotron
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No