Information card for entry 2004957

Structure parameters

• Formula: As2 H4 Mg2 O9
• Calculated formula: As2 H4 Mg2 O9
• Title of publication: Two Hydrous Divalent-Metal Diarsenates
• Authors of publication: Wu, C.-H.; Chen, T.-C.; Wang, S.-L.
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 1996
• Journal volume: 52
• Journal issue: 6
• Pages of publication: 1326 - 1329
• a: 6.499 ± 0.001 Å
• b: 14.191 ± 0.004 Å
• c: 7.607 ± 0.002 Å
• α: 90°
• β: 93.95 ± 0.02°
• γ: 90°
• Cell volume: 699.9 ± 0.3 ų
• Cell temperature: 296 K
• Number of distinct elements: 4
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/n 1
• Hall space group symbol: -P 2yn
• Residual factor for significantly intense reflections: 0.0253
• Weighted residual factors for significantly intense reflections: 0.0278
• Goodness-of-fit parameter for significantly intense reflections: 0.997
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No