Information card for entry 9017317

Structure parameters

• Mineral name: Urea
• Formula: C H4 N2 O
• Calculated formula: C2 H8 N4 O2
• Title of publication: The crystal structure and molecular thermal motion of urea at 12, 60 and 123 K from neutron diffraction Note: neutron data, T = 60 K
• Authors of publication: Swaminathan, S.; Craven, B. M.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1984
• Journal volume: 40
• Pages of publication: 300 - 306
• a: 5.57 Å
• b: 5.57 Å
• c: 4.688 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 145.445 ų
• Ambient diffraction temperature: 60 K
• Number of distinct elements: 4
• Space group number: 113
• Hermann-Mauguin space group symbol: P -4 21 m
• Hall space group symbol: P -4 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No