Information card for entry 2312758

Structure parameters

• Chemical name: Dirubidium dicalcium pyrosilicate
• Formula: Ca2 O7 Rb2 Si2
• Calculated formula: Ca2 O7 Rb2 Si2
• Title of publication: Rb₂Ca₂Si₂O₇: a new alkali alkaline-earth silicate based on [Si₂O₇]^6- anions.
• Authors of publication: Kahlenberg, Volker
• Journal of publication: Acta crystallographica. Section C, Structural chemistry
• Year of publication: 2025
• Journal volume: 81
• Journal issue: Pt 3
• Pages of publication: 146 - 155
• a: 5.7281 ± 0.0006 Å
• b: 13.8361 ± 0.0013 Å
• c: 9.9233 ± 0.0011 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 786.47 ± 0.14 ų
• Cell temperature: 193 ± 2 K
• Ambient diffraction temperature: 193 ± 2 K
• Number of distinct elements: 4
• Space group number: 59
• Hermann-Mauguin space group symbol: P m m n :2
• Hall space group symbol: -P 2ab 2a
• Residual factor for all reflections: 0.0391
• Residual factor for significantly intense reflections: 0.029
• Weighted residual factors for significantly intense reflections: 0.0621
• Weighted residual factors for all reflections included in the refinement: 0.0668
• Goodness-of-fit parameter for all reflections included in the refinement: 1.067
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No