Information card for entry 2103683

Structure parameters

• Formula: Ca2 Co O7 Si2
• Calculated formula: Ca2 Co O7 Si2
• Title of publication: Commensurate structure of Ca~2~CoSi~2~O~7~, a new twinned orthorhombic structure
• Authors of publication: Hagiya, Kenji; Kusaka, Katsuhiro; Ohmasa, Masaaki; Iishi, Kazuaki
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2001
• Journal volume: 57
• Journal issue: 3
• Pages of publication: 271 - 277
• a: 23.51 ± 0.004 Å
• b: 23.51 ± 0.004 Å
• c: 5.025 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 2777.4 ± 0.9 ų
• Cell temperature: 170 ± 0.5 K
• Number of distinct elements: 4
• Space group number: 18
• Hermann-Mauguin space group symbol: P 21 21 2
• Hall space group symbol: P 2 2ab
• Residual factor for all reflections: 0.084
• Residual factor for significantly intense reflections: 0.084
• Weighted residual factors for all reflections: 0.139
• Weighted residual factors for all reflections included in the refinement: 0.139
• Goodness-of-fit parameter for all reflections included in the refinement: 1.21
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No