Information card for entry 1529336

Structure parameters

• Formula: F7 N2 Ta
• Calculated formula: F7 H8 N2 Ta
• Title of publication: Ferroelastic phase transitions in (NH4)2TaF7
• Authors of publication: E.I. Pogoreltsev; S.V. Melnikova; A.V. Kartashev; M.S. Molokeev; M.V. Gorev; I.N. Flerov; N.M. Laptash
• Journal of publication: Physics of the Solid State
• Year of publication: 2013
• Journal volume: 55
• Journal issue: 3
• Pages of publication: 611 - 618
• a: 5.89467 ± 0.00027 Å
• b: 5.89467 ± 0.00027 Å
• c: 10.68564 ± 0.00048 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 371.3 ± 0.03 ų
• Number of distinct elements: 3
• Space group number: 129
• Hermann-Mauguin space group symbol: P 4/n m m :2
• Hall space group symbol: -P 4a 2a
• Residual factor for all reflections: 0.05232
• Residual factor R(I) for significantly intense reflections: 0.0744
• 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: Yes