Information card for entry 2002925

Structure parameters

• Chemical name: ammonium tetrafluoroberyllate
• Formula: Be F4 H8 N2
• Calculated formula: Be F4 H8 N2
• Title of publication: Neutron structures of ammonium tetrafluoroberyllate
• Authors of publication: Srivastava, R. C.; Klooster, W. T.; Koetzle, T. F.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 1999
• Journal volume: 55
• Journal issue: 1
• Pages of publication: 17 - 23
• a: 7.531 ± 0.003 Å
• b: 5.874 ± 0.002 Å
• c: 10.399 ± 0.004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 460 ± 0.3 ų
• Cell temperature: 200 K
• Ambient diffraction temperature: 200 K
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Residual factor for all reflections: 0.0679
• Residual factor for significantly intense reflections: 0.0679
• Weighted residual factors for all reflections: 0.0733
• Weighted residual factors for significantly intense reflections: 0.0733
• Goodness-of-fit parameter for all reflections: 1.0428
• Goodness-of-fit parameter for significantly intense reflections: 1.0428
• Diffraction radiation probe: neutron
• Diffraction radiation wavelength: 1.0462 Å
• Diffraction radiation type: neutron
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes