Information card for entry 7232769

Structure parameters

• Common name: Type I silicon-gallium clathrate
• Chemical name: sodium strontium gallium silicon
• Formula: Ga8.4 Na4.2 Si37.6 Sr3.8
• Calculated formula: Ga8.3984 Na4.2 Si37.6016 Sr3.8
• Title of publication: Single crystal growth and structure analysis of type-I (Na/Sr)‒(Ga/Si) quaternary clathrates
• Authors of publication: Urushiyama, Hironao; Morito, Haruhiko; Yamane, Hisanori
• Journal of publication: RSC Advances
• Year of publication: 2019
• Journal volume: 9
• Journal issue: 26
• Pages of publication: 14586
• a: 10.3747 ± 0.0003 Å
• b: 10.3747 ± 0.0003 Å
• c: 10.3747 ± 0.0003 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1116.67 ± 0.06 ų
• Cell temperature: 302 ± 2 K
• Ambient diffraction temperature: 302 ± 2 K
• Number of distinct elements: 4
• Space group number: 223
• Hermann-Mauguin space group symbol: P m -3 n
• Hall space group symbol: -P 4n 2 3
• Residual factor for all reflections: 0.0125
• Residual factor for significantly intense reflections: 0.0113
• Weighted residual factors for significantly intense reflections: 0.0283
• Weighted residual factors for all reflections included in the refinement: 0.0287
• Goodness-of-fit parameter for all reflections included in the refinement: 1.191
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No