Information card for entry 2208744

Structure parameters

• Chemical name: Dipotassium heptafluorotantalate(V)
• Formula: F7 K2 Ta
• Calculated formula: F7 K2 Ta
• SMILES: [Ta](F)(F)(F)(F)([F-])([F-])F.[K+].[K+]
• Title of publication: Dipotassium heptafluorotantalate(V), β-K~2~TaF~7~, at 509 K
• Authors of publication: Vratislav Langer; Łubomír Smrčok; Miroslav Boča
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2006
• Journal volume: 62
• Journal issue: 4
• Pages of publication: i91 - i93
• a: 9.8155 ± 0.0015 Å
• b: 5.8212 ± 0.0008 Å
• c: 12.0041 ± 0.0018 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 685.89 ± 0.17 ų
• Cell temperature: 509 ± 2 K
• Ambient diffraction temperature: 509 ± 2 K
• Number of distinct elements: 3
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Residual factor for all reflections: 0.1218
• Residual factor for significantly intense reflections: 0.0711
• Weighted residual factors for significantly intense reflections: 0.1871
• Weighted residual factors for all reflections included in the refinement: 0.2204
• Goodness-of-fit parameter for all reflections included in the refinement: 1.032
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes