Information card for entry 2239660

Structure parameters

• Chemical name: Dithulium disilicate
• Formula: O7 Si2 Tm2
• Calculated formula: O7 Si2 Tm2
• Title of publication: Thortveitite-type Tm~2~Si~2~O~7~
• Authors of publication: Kahlenberg, Volker; Aichholzer, Paul
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2014
• Journal volume: 70
• Journal issue: 7
• Pages of publication: i34 - i35
• a: 6.8205 ± 0.0014 Å
• b: 8.9062 ± 0.0018 Å
• c: 4.6937 ± 0.0011 Å
• α: 90°
• β: 101.78 ± 0.02°
• γ: 90°
• Cell volume: 279.11 ± 0.11 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 3
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Residual factor for all reflections: 0.0188
• Residual factor for significantly intense reflections: 0.018
• Weighted residual factors for significantly intense reflections: 0.045
• Weighted residual factors for all reflections included in the refinement: 0.0454
• Goodness-of-fit parameter for all reflections included in the refinement: 1.154
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes