Information card for entry 2203958

Structure parameters

• Formula: Cr H28 N O20 S2
• Calculated formula: Cr H28.002 N O20 S2
• Title of publication: The ammonium chromium(III) alum NH~4~Cr(SO~4~)~2~.12H~2~O
• Authors of publication: Rempfer, Nora; Lerner, Hans-Wolfram; Bolte, Michael
• Journal of publication: Acta Crystallographica, Section E
• Year of publication: 2004
• Journal volume: 60
• Journal issue: 7
• Pages of publication: i80 - i81
• a: 12.2491 ± 0.0012 Å
• b: 12.2491 ± 0.0012 Å
• c: 12.2491 ± 0.0012 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1837.9 ± 0.3 ų
• Cell temperature: 100 ± 2 K
• Ambient diffraction temperature: 100 ± 2 K
• Number of distinct elements: 5
• Space group number: 205
• Hermann-Mauguin space group symbol: P a -3
• Hall space group symbol: -P 2ac 2ab 3
• Residual factor for all reflections: 0.0245
• Residual factor for significantly intense reflections: 0.019
• Weighted residual factors for significantly intense reflections: 0.0496
• Weighted residual factors for all reflections included in the refinement: 0.0506
• Goodness-of-fit parameter for all reflections included in the refinement: 1.037
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No