Information card for entry 9014986

Structure parameters

• Mineral name: Ice IV
• Formula: H2 O
• Calculated formula: H2 O
• Title of publication: Structure of ice IV, a metastable high-pressure phase Note: T = 110 K, synthesized at 4-5.5 kb
• Authors of publication: Engelhardt, H.; Kamb, B.
• Journal of publication: Journal of Chemical Physics
• Year of publication: 1981
• Journal volume: 75
• Pages of publication: 5887 - 5899
• a: 7.6 Å
• b: 7.6 Å
• c: 7.6 Å
• α: 70.1°
• β: 70.1°
• γ: 70.1°
• Cell volume: 375.394 ų
• Number of distinct elements: 2
• Space group number: 167
• Hermann-Mauguin space group symbol: R -3 c :R
• Hall space group symbol: -P 3* 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No