Information card for entry 4333603

Structure parameters

• Formula: Ge7 Sm4
• Calculated formula: Ge7 Sm4
• Title of publication: Synthesis, Structural Characterization, and Physical Properties of the Early Rare-Earth Metal Digermanides REGe2-x (x~ 1/4) [RE= La-Nd, Sm]. A Case Study of Commensurately and Incommensurately Modulated Structures
• Authors of publication: Jiliang Zhang; Paul H. Tobash; William D. Pryz; Douglas J. Buttey; Namjung Hur; Joe D. Thompson; John L. Sarrao; Svilen Bobev
• Journal of publication: Inorganic Chemistry
• Year of publication: 2013
• Journal volume: 52
• Pages of publication: 953 - 964
• a: 5.892 ± 0.002 Å
• b: 13.781 ± 0.005 Å
• c: 11.792 ± 0.005 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 957.5 ± 0.6 ų
• Cell temperature: 120 ± 2 K
• Ambient diffraction temperature: 120 ± 2 K
• Number of distinct elements: 2
• Space group number: 20
• Hermann-Mauguin space group symbol: C 2 2 21
• Hall space group symbol: C 2c 2
• Residual factor for all reflections: 0.0384
• Residual factor for significantly intense reflections: 0.0345
• Weighted residual factors for significantly intense reflections: 0.0839
• Weighted residual factors for all reflections included in the refinement: 0.0864
• Goodness-of-fit parameter for all reflections included in the refinement: 1.163
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No