Information card for entry 2020014

Structure parameters

• Chemical name: Potassium erbium sulfide
• Formula: Er K S2
• Calculated formula: Er K S2
• Title of publication: Structure determination of KScS~2~, RbScS~2~ and KLnS~2~ (Ln = Nd, Sm, Tb, Dy, Ho, Er, Tm and Yb) and crystal‒chemical discussion
• Authors of publication: Havlák, Lubomír; Fábry, Jan; Henriques, Margarida; Dušek, Michal
• Journal of publication: Acta Crystallographica Section C
• Year of publication: 2015
• Journal volume: 71
• Journal issue: 7
• Pages of publication: 623 - 630
• a: 3.9935 ± 0.0004 Å
• b: 3.9935 ± 0.0004 Å
• c: 21.866 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 302 ± 0.05 ų
• Cell temperature: 296 ± 6 K
• Ambient diffraction temperature: 296 K
• Number of distinct elements: 3
• Space group number: 166
• Hermann-Mauguin space group symbol: R -3 m :H
• Hall space group symbol: -R 3 2"
• Residual factor for all reflections: 0.0267
• Residual factor for significantly intense reflections: 0.0267
• Weighted residual factors for significantly intense reflections: 0.0642
• Weighted residual factors for all reflections included in the refinement: 0.0642
• Goodness-of-fit parameter for all reflections included in the refinement: 1.81
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes