Information card for entry 2242050

Structure parameters

• Chemical name: Potassium nickel diiron(III) tris[arsenate(V)]
• Formula: As3 Fe2 K1.25 Ni0.88 O12
• Calculated formula: As3 Fe2 K1.25 Ni0.875 O12
• Title of publication: K~1+2<i>x~</i>Ni~1{-~<i>x</i>}Fe~2~(AsO~4~)~3~ (<i>x</i> = 0,125): un nouvel arséniate à structure de type α-CrPO~4~
• Authors of publication: Ben Smail, Ridha; Zid, Mohamed Faouzi
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2017
• Journal volume: 73
• Journal issue: 2
• Pages of publication: 239 - 245
• a: 6.737 ± 0.002 Å
• b: 10.773 ± 0.003 Å
• c: 13.574 ± 0.003 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 985.2 ± 0.5 ų
• Cell temperature: 298 ± 2 K
• Ambient diffraction temperature: 298 ± 2 K
• Number of distinct elements: 5
• Space group number: 74
• Hermann-Mauguin space group symbol: I b m m
• Hall space group symbol: -I 2c 2c
• Residual factor for all reflections: 0.0308
• Residual factor for significantly intense reflections: 0.0284
• Weighted residual factors for significantly intense reflections: 0.0872
• Weighted residual factors for all reflections included in the refinement: 0.0888
• Goodness-of-fit parameter for all reflections included in the refinement: 1.102
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes