Information card for entry 4123712

Structure parameters

• Common name: Formamidinium_Germanium_Iodide
• Formula: C H5 Ge I3 N2
• Calculated formula: C Ge I3 N1.99
• Title of publication: Hybrid germanium iodide perovskite semiconductors: active lone pairs, structural distortions, direct and indirect energy gaps, and strong nonlinear optical properties.
• Authors of publication: Stoumpos, Constantinos C.; Frazer, Laszlo; Clark, Daniel J.; Kim, Yong Soo; Rhim, Sonny H.; Freeman, Arthur J.; Ketterson, John B.; Jang, Joon I.; Kanatzidis, Mercouri G.
• Journal of publication: Journal of the American Chemical Society
• Year of publication: 2015
• Journal volume: 137
• Journal issue: 21
• Pages of publication: 6804 - 6819
• a: 8.4669 ± 0.0015 Å
• b: 8.4669 ± 0.0015 Å
• c: 11.729 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 728.2 ± 0.2 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 5
• Space group number: 160
• Hermann-Mauguin space group symbol: R 3 m :H
• Hall space group symbol: R 3 -2"
• Residual factor for all reflections: 0.0332
• Residual factor for significantly intense reflections: 0.027
• Weighted residual factors for significantly intense reflections: 0.0485
• Weighted residual factors for all reflections included in the refinement: 0.051
• Goodness-of-fit parameter for all reflections included in the refinement: 1.112
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No