Information card for entry 2015530

Structure parameters

• Common name: gamma alumina
• Formula: Al2.67 O4
• Calculated formula: Al2.6653 O4
• SMILES: [Al+3].[Al+3].[O-2].[O-2].[O-2]
• Title of publication: γ-Alumina: a single-crystal X-ray diffraction study
• Authors of publication: Ľubomír Smrčok; Vratislav Langer; Jan Křesťan
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2006
• Journal volume: 62
• Journal issue: 9
• Pages of publication: i83 - i84
• a: 7.9382 ± 0.0001 Å
• b: 7.9382 ± 0.0001 Å
• c: 7.9382 ± 0.0001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 500.226 ± 0.011 ų
• Cell temperature: 173 ± 2 K
• Ambient diffraction temperature: 173 ± 2 K
• Number of distinct elements: 2
• Space group number: 227
• Hermann-Mauguin space group symbol: F d -3 m :2
• Hall space group symbol: -F 4vw 2vw 3
• Residual factor for all reflections: 0.028
• Residual factor for significantly intense reflections: 0.0265
• Weighted residual factors for significantly intense reflections: 0.0978
• Weighted residual factors for all reflections included in the refinement: 0.1004
• Goodness-of-fit parameter for all reflections included in the refinement: 0.983
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes