Information card for entry 8107522

Structure parameters

• Common name: keatite
• Formula: O6 Si3
• Calculated formula: O6 Si3
• Title of publication: Rietveld structure analysis of keatite, a rare, metastable SiO2 polymorph
• Authors of publication: Grosskreuz, Isabel; Marler, Bernd
• Journal of publication: Zeitschrift für Kristallographie - New Crystal Structures
• Year of publication: 2023
• Journal volume: 238
• Journal issue: 4
• Pages of publication: 655 - 657
• a: 7.4462 ± 0.0001 Å
• b: 7.4462 ± 0.0001 Å
• c: 8.5838 ± 0.0004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 475.94 ± 0.02 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 2
• Space group number: 96
• Hermann-Mauguin space group symbol: P 43 21 2
• Hall space group symbol: P 4nw 2abw
• Residual factor R(I) for significantly intense reflections: 3.334
• Goodness-of-fit parameter for all reflections: 1.8253
• Method of determination: powder diffraction
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No