Information card for entry 1530518

Structure parameters

• Chemical name: (N H4)2 Be F4
• Formula: Be F4 H8 N2
• Calculated formula: Be F4 H8 N2
• Title of publication: X-ray study of crystal structures and phase transition in ferroelectric ammonium fluoberyllate (N H4)2 Be F4
• Authors of publication: Onodera, A.; Shiozaki, Y.
• Journal of publication: Journal of the Physical Society of Japan
• Year of publication: 1979
• Journal volume: 46
• Pages of publication: 157 - 166
• a: 7.573 Å
• b: 10.462 Å
• c: 5.91 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 468.242 ų
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n a m
• Hall space group symbol: -P 2c 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No