Information card for entry 4304042

Structure parameters

• Common name: potassium neptunyl silicate
• Chemical name: potassium neptunyl silicate
• Formula: K Np O4.33 Si0.67
• Calculated formula: K Np O4.33333 Si0.666667
• Title of publication: Synthesis, Structure, and Infrared Spectroscopy of the First Np5+ Neptunyl Silicates, Li6(NpO2)4(H2Si2O7)(HSiO4)2(H2O)4 and K3(NpO2)3(Si2O7)
• Authors of publication: T. Z. Forbes; P. C. Burns
• Journal of publication: Inorganic Chemistry
• Year of publication: 2008
• Journal volume: 47
• Pages of publication: 705 - 712
• a: 9.7337 ± 0.0013 Å
• b: 9.7337 ± 0.0013 Å
• c: 3.8817 ± 0.0007 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 318.5 ± 0.08 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 4
• Space group number: 189
• Hermann-Mauguin space group symbol: P -6 2 m
• Hall space group symbol: P -6 -2
• Residual factor for all reflections: 0.0363
• Residual factor for significantly intense reflections: 0.0339
• Weighted residual factors for significantly intense reflections: 0.0564
• Weighted residual factors for all reflections included in the refinement: 0.0568
• Goodness-of-fit parameter for all reflections included in the refinement: 1.081
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No