Information card for entry 2230972

Structure parameters

• Chemical name: disilver(I) selenide
• Formula: Ag2 Se
• Calculated formula: Ag2 Se
• Title of publication: Reinvestigation of the low-temperature form of Ag~2~Se (naumannite) based on single-crystal data
• Authors of publication: Jaemin Yu; Hoseop Yun
• Journal of publication: Acta Crystallographica, Section E
• Year of publication: 2011
• Journal volume: 67
• Journal issue: 9
• Pages of publication: i45 - i45
• a: 4.3359 ± 0.0008 Å
• b: 7.07 ± 0.001 Å
• c: 7.774 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 238.31 ± 0.06 ų
• Cell temperature: 290 ± 1 K
• Ambient diffraction temperature: 290 ± 1 K
• Number of distinct elements: 2
• Space group number: 19
• Hermann-Mauguin space group symbol: P 21 21 21
• Hall space group symbol: P 2ac 2ab
• Residual factor for significantly intense reflections: 0.0311
• Weighted residual factors for all reflections included in the refinement: 0.0799
• Goodness-of-fit parameter for all reflections included in the refinement: 1.135
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes