Information card for entry 9011438

Structure parameters

• Mineral name: Urea
• Formula: C H4 N2 O
• Calculated formula: C H4 N2 O
• Title of publication: Strukturverfeinerung von harnstoff mit neutronenbeugungsdaten bei 60, 123, 293 K und X-N- und X-X (1s2)-synthesen bei etwa 100 K Sample: T = 293 K
• Authors of publication: Guth, H.; Heger, G.; Klein, S.; Treutmann, W.; Scheringer, C.
• Journal of publication: Zeitschrift fur Kristallographie
• Year of publication: 1980
• Journal volume: 153
• Pages of publication: 237 - 254
• a: 5.645 Å
• b: 5.645 Å
• c: 4.704 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 149.898 ų
• Ambient diffraction temperature: 293 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
• Duplicate of: 1008785
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No