Information card for entry 2002897

Structure parameters

• Formula: Al1.45 Na1.45 O4 Si0.55
• Calculated formula: Al1.45 Na1.45025 O4 Si0.55
• Title of publication: Cristobalite-related phases in the NaAlO2-NaAlSiO4 system II. A commensurately modulated cubic structure
• Authors of publication: Withers, Ray L.; Thompson, John G.; Melnitchenko, Alexandra; Palethorpe, Stephen R.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1998
• Journal volume: 54
• Pages of publication: 547 - 557
• a: 14.553 ± 0.001 Å
• b: 14.553 ± 0.001 Å
• c: 14.553 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 3082 ± 0.6 ų
• Cell temperature: 293 K
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 4
• Space group number: 198
• Hermann-Mauguin space group symbol: P 21 3
• Hall space group symbol: P 2ac 2ab 3
• Diffraction radiation wavelength: 1.5418 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No