Information card for entry 8102921

Structure parameters

• Chemical name: tetrapotassium tetrahedro-tetrasilicide
• Formula: K4 Si4
• Calculated formula: K4 Si4
• Title of publication: Refinement of the crystal structures of the tetrahedro-tetrasilicides K~4~Si~4~, Rb~4~Si~4~ and Cs~4~Si~4~
• Authors of publication: von Schnering, H. G.; Schwarz, M.; Chang, J.-H.; Peters, K.; Peters, E.-M.; Nesper, R.
• Journal of publication: Zeitschrift für Kristallographie - New Crystal Structures
• Year of publication: 2005
• Journal volume: 220
• Journal issue: 4
• Pages of publication: 525 - 527
• a: 12.62 ± 0.001 Å
• b: 12.62 ± 0.001 Å
• c: 12.62 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 2009.9 ± 0.3 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 2
• Space group number: 218
• Hermann-Mauguin space group symbol: P -4 3 n
• Hall space group symbol: P -4n 2 3
• Residual factor for all reflections: 0.0209
• Residual factor for significantly intense reflections: 0.0172
• Weighted residual factors for significantly intense reflections: 0.0401
• Weighted residual factors for all reflections included in the refinement: 0.0414
• Goodness-of-fit parameter for all reflections included in the refinement: 0.999
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No