Information card for entry 2310022

Structure parameters

• Chemical name: Protactinium
• Formula: Pa
• Calculated formula: Pa
• SMILES: [Pa]
• Title of publication: Crystal chemical studies of the 5f - series of elements. XVI. Identification and crystal structure of protactinium metal and of protactinium monoxide
• Authors of publication: W. H. Zachariasen
• Journal of publication: Acta Crystallographica
• Year of publication: 1952
• Journal volume: 5
• Pages of publication: 19 - 21
• a: 3.925 Å
• b: 3.925 Å
• c: 3.238 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 49.883 ų
• Number of distinct elements: 1
• Space group number: 139
• Hermann-Mauguin space group symbol: I 4/m m m
• Hall space group symbol: -I 4 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No