Information card for entry 2238357

Structure parameters

• Chemical name: Heptasodium trialuminium tetrakis(diarsenate)
• Formula: Al3 As8 Na7 O28
• Calculated formula: Al3 As8 Na7 O28
• Title of publication: Na~7~Al~3~(As~2~O~7~)~4~
• Authors of publication: Fakhar Bourguiba, Noura; Driss, Ahmed
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2013
• Journal volume: 69
• Journal issue: 8
• Pages of publication: i53
• a: 9.8 ± 0.001 Å
• b: 8.468 ± 0.001 Å
• c: 28.637 ± 0.002 Å
• α: 90°
• β: 94.14 ± 0.01°
• γ: 90°
• Cell volume: 2370.3 ± 0.4 ų
• Cell temperature: 298 ± 2 K
• Ambient diffraction temperature: 298 ± 2 K
• Number of distinct elements: 4
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Residual factor for all reflections: 0.0496
• Residual factor for significantly intense reflections: 0.0336
• Weighted residual factors for significantly intense reflections: 0.0791
• Weighted residual factors for all reflections included in the refinement: 0.0845
• Goodness-of-fit parameter for all reflections included in the refinement: 1.1
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes