Information card for entry 2311093

Structure parameters

• Chemical name: sodium hafnium disilicate
• Formula: Hf Na2 O7 Si2
• Calculated formula: Hf Na2 O7 Si2
• Title of publication: Crystal structure of Na~2~HfSi~2~O~7~ by Rietveld refinement
• Authors of publication: Massoni, Nicolas; Pierrick, Chevreux
• Journal of publication: Acta Crystallographica, Section e
• Year of publication: 2016
• Journal volume: 72
• Pages of publication: 1434
• a: 6.6123 ± 0.0002 Å
• b: 8.7948 ± 0.0003 Å
• c: 5.41074 ± 0.00015 Å
• α: 92.603 ± 0.002°
• β: 94.0843 ± 0.0018°
• γ: 71.3262 ± 0.0018°
• Cell volume: 297.249 ± 0.016 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 4
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Residual factor for all reflections: 0.0236
• Residual factor for significantly intense reflections: 0.0236
• Weighted residual factors for all reflections: 0.0297
• Weighted residual factors for significantly intense reflections: 0.0297
• Goodness-of-fit parameter for all reflections: 2.23
• Goodness-of-fit parameter for all reflections included in the refinement: 2.23
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 1.54176 Å
• Diffraction radiation type: CuKα~1~
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No