Information card for entry 2012328

Structure parameters

• Formula: Ca1.73 Ge3 Na2.54 O9
• Calculated formula: Ca1.73 Ge3 Na2.54 O9
• Title of publication: Trigonal sodium calcium germanate, Na~2.54~Ca~1.73~Ge~3~O~9~
• Authors of publication: Nishi, Fumito
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2001
• Journal volume: 57
• Journal issue: 11
• Pages of publication: 1231 - 1233
• a: 10.78 ± 0.002 Å
• b: 10.78 ± 0.002 Å
• c: 13.449 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1353.5 ± 0.4 ų
• Cell temperature: 293 K
• Number of distinct elements: 4
• Space group number: 152
• Hermann-Mauguin space group symbol: P 31 2 1
• Hall space group symbol: P 31 2"
• Residual factor for significantly intense reflections: 0.062
• Weighted residual factors for all reflections included in the refinement: 0.068
• Goodness-of-fit parameter for all reflections included in the refinement: 1.34
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No