Information card for entry 2002950

Structure parameters

• Chemical name: strontium niobium oxide
• Formula: Nb5 O17 Sr5
• Calculated formula: Nb5 O17 Sr5
• Title of publication: Centrosymmetric or Noncentrosymmetric? Case Study and Structural Redetermination of Sr~5~Nb~5~O~17~
• Authors of publication: Abrahams, Sidney C.; Schmalle, Helmut W.; Williams, Tim; Reller, Armin; Lichtenberg, Frank; Widmer, Daniel; Bednorz, J. Georg; Spreiter, Rolf; Bosshard, Christian; Günter, Peter
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1998
• Journal volume: 54
• Pages of publication: 399 - 416
• a: 32.456 ± 0.005 Å
• b: 5.674 ± 0.002 Å
• c: 3.995 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 735.7 ± 0.5 ų
• Cell temperature: 295 ± 2 K
• Ambient diffraction temperature: 295 ± 2 K
• Number of distinct elements: 3
• Space group number: 58
• Hermann-Mauguin space group symbol: P n n m
• Hall space group symbol: -P 2 2n
• Residual factor for all reflections: 0.0987
• Residual factor for significantly intense reflections: 0.0221
• Weighted residual factors for all reflections: 0.0779
• Weighted residual factors for significantly intense reflections: 0.0551
• Goodness-of-fit parameter for all reflections: 0.716
• Goodness-of-fit parameter for significantly intense reflections: 0.809
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No