Information card for entry 2013549

Structure parameters

• Chemical name: diyttrium disilicate
• Formula: O7 Si2 Y2
• Calculated formula: O7 Si2 Y2
• Title of publication: β-Y~2~Si~2~O~7~, a new thortveitite-type compound, determined at 100 and 280K
• Authors of publication: Redhammer, Günther J.; Roth, Georg; .
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2003
• Journal volume: 59
• Journal issue: 10
• Pages of publication: i103 - i106
• a: 6.8691 ± 0.0016 Å
• b: 8.96 ± 0.002 Å
• c: 4.7168 ± 0.0011 Å
• α: 90°
• β: 101.73 ± 0.018°
• γ: 90°
• Cell volume: 284.24 ± 0.11 ų
• Cell temperature: 280 ± 1 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 significantly intense reflections: 0.019
• Weighted residual factors for all reflections included in the refinement: 0.045
• Goodness-of-fit parameter for all reflections included in the refinement: 1.171
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes