Information card for entry 2017773

Structure parameters

• Common name: Langatate
• Chemical name: langtate
• Formula: Ga5.34 La3 O14 Si0.36 Ta0.29
• Calculated formula: Ga5.338 La3 O14 Si0.36 Ta0.288
• Title of publication: Single-crystal neutron diffraction investigation on crystals belonging to the langasite family: a comparative study
• Authors of publication: Chitra, R.; Choudhury, R. R.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2010
• Journal volume: 66
• Journal issue: 5
• Pages of publication: 497 - 502
• a: 8.195 ± 0.007 Å
• b: 8.195 ± 0.007 Å
• c: 5.118 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 297.7 ± 0.4 ų
• Cell temperature: 300 ± 2 K
• Ambient diffraction temperature: 300 ± 2 K
• Number of distinct elements: 5
• Space group number: 150
• Hermann-Mauguin space group symbol: P 3 2 1
• Hall space group symbol: P 3 2"
• Residual factor for all reflections: 0.0472
• Residual factor for significantly intense reflections: 0.0451
• Weighted residual factors for significantly intense reflections: 0.1304
• Weighted residual factors for all reflections included in the refinement: 0.1339
• Goodness-of-fit parameter for all reflections included in the refinement: 1.136
• Diffraction radiation probe: neutron
• Diffraction radiation wavelength: 0.995 Å
• Diffraction radiation type: neutron
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes