Information card for entry 4002835

Structure parameters

• Mineral name: Nepheline
• Formula: Al4 Na3.49 O16 Si4
• Calculated formula: Al4 Na3.493 O16 Si4
• Title of publication: Temperature and Eu2+ Doping induced Phase Selection in NaAlSiO4 Polymorphs and the Controlled Yellow/Blue Emission
• Authors of publication: Ming Zhao; Zhiguo Xia; Maxim S. Molokeev; Lixin Ning; Quanlin Liu
• Journal of publication: Chemistry of Materials
• Year of publication: 2017
• Journal volume: 29
• Journal issue: 15
• Pages of publication: 6552 - 6559
• a: 9.9762 ± 0.00023 Å
• b: 9.9762 ± 0.00023 Å
• c: 8.34957 ± 0.0002 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 719.66 ± 0.03 ų
• Cell temperature: 300 K
• Ambient diffraction temperature: 300 K
• Number of distinct elements: 4
• Space group number: 173
• Hermann-Mauguin space group symbol: P 63
• Hall space group symbol: P 6c
• Residual factor R(I) for significantly intense reflections: 1.8
• Goodness-of-fit parameter for all reflections: 1.421
• Method of determination: powder diffraction
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 1.5406 Å
• Diffraction radiation type: CuKα~1~~2~
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No