Information card for entry 2007415

Structure parameters

• Chemical name: Nonaniobium arsenic pentacosaoxide,
• Formula: As Nb9 O25
• Calculated formula: As Nb9 O25
• Title of publication: A Niobium(V) Arsenate: Nb~9~AsO~25~
• Authors of publication: Ulutagay, Mutlu; Schimek, George L.; Hwu, Shiou-Jyh
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 1998
• Journal volume: 54
• Journal issue: 7
• Pages of publication: 898 - 900
• a: 15.6684 ± 0.0008 Å
• b: 15.6684 ± 0.0008 Å
• c: 3.829 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 940 ± 0.3 ų
• Cell temperature: 298 K
• Ambient diffraction temperature: 298 K
• Number of distinct elements: 3
• Space group number: 87
• Hermann-Mauguin space group symbol: I 4/m
• Hall space group symbol: -I 4
• Residual factor for all reflections: 0.0295
• Residual factor for significantly intense reflections: 0.0259
• Weighted residual factors for all reflections: 0.0528
• Weighted residual factors for significantly intense reflections: 0.0522
• Goodness-of-fit parameter for significantly intense reflections: 1.69
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No