Information card for entry 2008940

Structure parameters

• Chemical name: potassium niobium alminium arsenate
• Formula: Al As1.6 K2 Nb1.4 O10
• Calculated formula: Al As1.6 K2 Nb1.4 O10
• Title of publication: K~2~NbAlO~2~[(As,Nb)O~4~]~2~, isostructural with KTiOPO~4~
• Authors of publication: Takeshi Nakagawa; Takeo Matsumoto; Valery I. Chani; Tsuguo Fukuda
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 1999
• Journal volume: 55
• Journal issue: 9
• Pages of publication: 1391 - 1393
• a: 13.006 ± 0.001 Å
• b: 10.648 ± 0.001 Å
• c: 6.619 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 916.65 ± 0.18 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 296.2 K
• Number of distinct elements: 5
• Space group number: 33
• Hermann-Mauguin space group symbol: P n 21 a
• Hall space group symbol: P -2ac -2n
• Residual factor for significantly intense reflections: 0.023
• Weighted residual factors for all reflections included in the refinement: 0.034
• Goodness-of-fit parameter for all reflections: 1.991
• Goodness-of-fit parameter for all reflections included in the refinement: 1.991
• Diffraction radiation wavelength: 0.71069 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No