Information card for entry 2242532

Structure parameters

• Chemical name: Dicalcium octacerium hexakis(silicate) dioxide
• Formula: Ca2 Ce8 O26 Si6
• Calculated formula: Ca2 Ce8 O26 Si6
• Title of publication: Reinvestigation of the crystal structure of Ca~2~Ce~8~(SiO~4~)~6~O~2~ apatite by Rietveld refinement
• Authors of publication: Massoni, Nicolas; Hegron, Ronan; Campayo, Lionel
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2018
• Journal volume: 74
• Journal issue: 7
• Pages of publication: 955 - 959
• a: 9.59912 ± 0.00006 Å
• b: 9.59912 ± 0.00006 Å
• c: 7.09284 ± 0.00006 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 565.996 ± 0.007 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 4
• Space group number: 176
• Hermann-Mauguin space group symbol: P 63/m
• Hall space group symbol: -P 6c
• Residual factor for all reflections: 0.0458
• Residual factor for significantly intense reflections: 0.0438
• Weighted residual factors for all reflections: 0.0442
• Weighted residual factors for significantly intense reflections: 0.0438
• Goodness-of-fit parameter for all reflections: 1.76
• Goodness-of-fit parameter for all reflections included in the refinement: 1.76
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 1.54176 Å
• Diffraction radiation type: CuKα~1~
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No