Information card for entry 8102990

Structure parameters

• Chemical name: tetrasodium tetrasilicide
• Formula: Na4 Si4
• Calculated formula: Na4 Si4
• Title of publication: Refinement of the crystal structure of tetrasodium tetrasilicide, Na4Si4
• Authors of publication: Thorsten Goebel; Yurii Prots; Frank Haarmann
• Journal of publication: Zeitschrift für Kristallographie - New Crystal Structures
• Year of publication: 2008
• Journal volume: 223
• Journal issue: 3
• Pages of publication: 187
• a: 12.1536 ± 0.0005 Å
• b: 6.5452 ± 0.0005 Å
• c: 11.1323 ± 0.0006 Å
• α: 90°
• β: 118.9 ± 0.1°
• γ: 90°
• Cell volume: 775.3 ± 0.8 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 2
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Residual factor for all reflections: 0.03
• Residual factor for significantly intense reflections: 0.028
• Weighted residual factors for significantly intense reflections: 0.063
• Weighted residual factors for all reflections included in the refinement: 0.064
• Goodness-of-fit parameter for all reflections included in the refinement: 1.149
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No