Information card for entry 4319532

Structure parameters

• Formula: C64 H144 N4 O40 Si W12
• Calculated formula: C62 N4 O40 Si W12
• Title of publication: About the Keggin Isomers: Crystal Structure of [N(C4H9)4]4-γ-[SiW12O40], the γ-Isomer of the Keggin Ion. Synthesis and 183W NMR Characterization of the Mixed γ-[SiMo2W10O40]n- (n = 4 or 6)
• Authors of publication: André Tézé; Emmanuel Cadot; Virginie Béreau; Gilbert Hervé
• Journal of publication: Inorganic Chemistry
• Year of publication: 2001
• Journal volume: 40
• Pages of publication: 2000 - 2004
• a: 19.0881 ± 0.0003 Å
• b: 21.4435 ± 0.0003 Å
• c: 26.0799 ± 0.0001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 10674.9 ± 0.2 ų
• Cell temperature: 296 ± 2 K
• Ambient diffraction temperature: 296 ± 2 K
• Number of distinct elements: 6
• Space group number: 19
• Hermann-Mauguin space group symbol: P 21 21 21
• Hall space group symbol: P 2ac 2ab
• Residual factor for all reflections: 0.1293
• Residual factor for significantly intense reflections: 0.0591
• Weighted residual factors for all reflections: 0.1449
• Weighted residual factors for significantly intense reflections: 0.1162
• Goodness-of-fit parameter for all reflections: 0.974
• Goodness-of-fit parameter for significantly intense reflections: 1.033
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No