Information card for entry 2239136

Structure parameters

• Chemical name: Sodium potassium trialuminium tetrakis(orthoarsenate)
• Formula: Al3 As4 K1.33 Na1.67 O16
• Calculated formula: Al3 As4 K1.326 Na1.674 O16
• Title of publication: The aluminoarsenate Na~1.67~K~1.33~Al~3~(AsO~4~)~4~
• Authors of publication: Bouhassine, Mohamad Alem; Boughzala, Habib
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2014
• Journal volume: 70
• Journal issue: 1
• Pages of publication: i6
• a: 10.493 ± 0.001 Å
• b: 20.395 ± 0.004 Å
• c: 6.335 ± 0.004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1355.7 ± 0.9 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 5
• Space group number: 64
• Hermann-Mauguin space group symbol: C m c e
• Hall space group symbol: -C 2ac 2
• Residual factor for all reflections: 0.0409
• Residual factor for significantly intense reflections: 0.0379
• Weighted residual factors for significantly intense reflections: 0.1095
• Weighted residual factors for all reflections included in the refinement: 0.1118
• Goodness-of-fit parameter for all reflections included in the refinement: 1.15
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes