Information card for entry 1563689

Structure parameters

• Formula: As4 Hf7.2 Nb3.8
• Calculated formula: As2 Hf3.609 Nb1.891
• Title of publication: The crystal structures of Hf3±δNb4±δAs3 and Hf7.2Nb3.8As4: Members of a homologous series combining W-type, Mg-type and AlB2-type building blocks
• Authors of publication: Chumak, Igor; Warczok, Piotr; Richter, Klaus W.
• Journal of publication: Journal of Solid State Chemistry
• Year of publication: 2010
• Journal volume: 183
• Journal issue: 3
• Pages of publication: 557 - 564
• a: 3.5825 ± 0.0007 Å
• b: 9.6162 ± 0.0019 Å
• c: 16.103 ± 0.003 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 554.75 ± 0.19 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 3
• Space group number: 71
• Hermann-Mauguin space group symbol: I m m m
• Hall space group symbol: -I 2 2
• Residual factor for all reflections: 0.0339
• Residual factor for significantly intense reflections: 0.026
• Weighted residual factors for significantly intense reflections: 0.0599
• Weighted residual factors for all reflections included in the refinement: 0.0628
• Goodness-of-fit parameter for all reflections included in the refinement: 1.188
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No