Information card for entry 9008417

Structure parameters

• Mineral name: Downeyite
• Formula: O2 Se
• Calculated formula: O2 Se
• SMILES: [O][Se](=O)O[Se](=O)[O]
• Title of publication: The crystal structure of SeO2 at 139 and 286 K Note: T = 139 K
• Authors of publication: Stahl, K.; Legros, J. P.; Galy, J.
• Journal of publication: Zeitschrift fur Kristallographie
• Year of publication: 1992
• Journal volume: 202
• Pages of publication: 99 - 107
• a: 8.3218 Å
• b: 8.3218 Å
• c: 5.0541 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 350.008 ų
• Ambient diffraction temperature: 139 K
• Number of distinct elements: 2
• Space group number: 135
• Hermann-Mauguin space group symbol: P 42/m b c
• Hall space group symbol: -P 4c 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No