Information card for entry 2210014

Structure parameters

• Common name: magnesium triiridium heptasilicide
• Chemical name: magnesium triiridium heptasilicide
• Formula: Ir3 Mg Si7
• Calculated formula: Ir3 Mg Si7
• Title of publication: MgIr~3~Si~7~, a new magnesium iridium silicide with the ScRh~3~Si~7~ type structure
• Authors of publication: Lorenz, Peter; Jung, Walter
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2006
• Journal volume: 62
• Journal issue: 8
• Pages of publication: i173 - i175
• a: 7.5232 ± 0.0008 Å
• b: 7.5232 ± 0.0008 Å
• c: 19.959 ± 0.003 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 978.3 ± 0.2 ų
• Cell temperature: 294 ± 3 K
• Ambient diffraction temperature: 294 ± 3 K
• Number of distinct elements: 3
• Space group number: 167
• Hermann-Mauguin space group symbol: R -3 c :H
• Hall space group symbol: -R 3 2"c
• Residual factor for all reflections: 0.0218
• Residual factor for significantly intense reflections: 0.018
• Weighted residual factors for significantly intense reflections: 0.0434
• Weighted residual factors for all reflections included in the refinement: 0.0443
• Goodness-of-fit parameter for all reflections included in the refinement: 1.059
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes