Information card for entry 2312878

Structure parameters

• Mineral name: epsilonII-Na2CO3
• Formula: C Na2 O3
• Calculated formula: C Na2 O3
• Title of publication: High-pressure and high-temperature polymorphism of Na₂CO₃ up to 10 GPa.
• Authors of publication: Chrappan Soldavini, Benedetta; Merlini, Marco; Mangano, Chiara; Comboni, Davide; Crichton, Wilson; Hanfland, Michael
• Journal of publication: Acta crystallographica Section B, Structural science, crystal engineering and materials
• Year of publication: 2026
• Journal volume: 82
• Journal issue: Pt 4
• Pages of publication: 410 - 415
• a: 8.526 ± 0.003 Å
• b: 14.9693 ± 0.0001 Å
• c: 11.0872 ± 0.0001 Å
• α: 90°
• β: 103.75 ± 0.04°
• γ: 90°
• Cell volume: 1374.5 ± 0.5 ų
• Ambient diffraction temperature: 298 ± 2 K
• Ambient diffracton pressure: 12320000000 ± 20000 kPa
• Number of distinct elements: 3
• Space group number: 9
• Hermann-Mauguin space group symbol: C 1 c 1
• Hall space group symbol: C -2yc
• Residual factor for all reflections: 0.0748
• Residual factor for significantly intense reflections: 0.0607
• Weighted residual factors for significantly intense reflections: 0.0674
• Weighted residual factors for all reflections included in the refinement: 0.0682
• Goodness-of-fit parameter for significantly intense reflections: 4.09
• Goodness-of-fit parameter for all reflections included in the refinement: 3.63
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.41105 Å
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No