Crystal Lab › Prototype structures › Orthorhombic
γ-Pu
Orthorhombic · space group Fddd (No. 70) · Pearson oF8
Symmetry elements and Wyckoff positions (interactive)
γ-Pu in Fddd
SettingUnit cell
- Lattice constants
- a = 3.159 Å, b = 10.162 Å, c = 5.768 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 185.2 ų
- Atoms in the conventional cell
- 8 (Pu 8)
- Formula units Z
- 8
- Pearson symbol
- oF8 — orthorhombic, face-centred lattice, 8 atoms per conventional cell
- Symmetry operations
- 32 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Pu1 | Pu | 8a | 8 | 0.1250 | 0.1250 | 0.1250 |
The multiplicity and the Wyckoff letter say how many copies of the site the group makes in one cell and on which kind of symmetry element the site sits; the 8 atoms drawn above are these sites multiplied by all 32 operations. Press Wyckoff under Colour to see the sites, and tick a symmetry element on the left to see which atoms lie on it.
How to read the label
A_oF8_70_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oF8, then the space-group number 70, then the Wyckoff letters occupied by each element in turn (Pu: 8a). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: \gamma-Pu.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A_oF8_70_a-001 (M. J. Mehl et al., Comput. Mater. Sci. 136, S1 (2017); D. Hicks et al., ibid. 161, S1 (2019) and 199, 110450 (2021); S. Eckert et al., ibid. 240, 112988 (2024)). Symmetry elements, Wyckoff assignment and the diagram are computed on this page from the group operations.
← α-S (A16) · Space group Fddd (9 prototypes) · All prototypes