Information card for entry 4311783

Structure parameters

• Formula: Se18 Sn4 Sr8
• Calculated formula: Se18 Sn4 Sr8
• SMILES: [Se]1[Sn]([Se-])([Se-])[Se][Sn]1([Se-])[Se-].[Sr+2].[Se-][Sn]([Se-])([Se-])[Se-].[Sr+2].[Sr+2].[Se-][Se-].[Sr+2].[Sr+2].[Sr+2].[Se-][Sn]([Se-])([Se-])[Se-].[Sr+2].[Sr+2].[Se-][Se-]
• Title of publication: Crystal Structures of Sr4Sn2Se9 and Sr4Sn2Se10 and the Oxidation State of Tin in an Unusual Geometry
• Authors of publication: Regina Pocha; Dirk Johrendt
• Journal of publication: Inorganic Chemistry
• Year of publication: 2004
• Journal volume: 43
• Pages of publication: 6830 - 6837
• a: 11.973 ± 0.002 Å
• b: 16.12 ± 0.003 Å
• c: 8.594 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1658.7 ± 0.6 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 200 ± 2 K
• Number of distinct elements: 3
• Space group number: 55
• Hermann-Mauguin space group symbol: P b a m
• Hall space group symbol: -P 2 2ab
• Residual factor for all reflections: 0.0817
• Residual factor for significantly intense reflections: 0.065
• Weighted residual factors for significantly intense reflections: 0.1488
• Weighted residual factors for all reflections included in the refinement: 0.1547
• Goodness-of-fit parameter for all reflections included in the refinement: 1.27
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No