Crystal Lab › Prototype structures › Cubic
D6₂ (Sb₂O₄, Obsolete )
Cubic · space group Fd-3m (No. 227) · Pearson cF96 · Strukturbericht D62
Symmetry elements and Wyckoff positions (interactive)
D6₂ (Sb₂O₄, Obsolete ) in Fd-3m
SettingUnit cell
- Lattice constants
- a = 10.240 Å, b = 10.240 Å, c = 10.240 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 1073.7 ų
- Atoms in the conventional cell
- 96 (O 64, Sb 32)
- Formula units Z
- 32
- Pearson symbol
- cF96 — cubic, face-centred lattice, 96 atoms per conventional cell
- Symmetry operations
- 192 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| O1 | O | 8a | 8 | 0.1250 | 0.1250 | 0.1250 |
| O2 | O | 8b | 8 | 0.3750 | 0.3750 | 0.3750 |
| Sb4 | Sb | 16c | 16 | 0.0000 | 0.0000 | 0.0000 |
| Sb5 | Sb | 16d | 16 | 0.5000 | 0.5000 | 0.5000 |
| O3 | O | 48f | 48 | 0.3950 | 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 96 atoms drawn above are these sites multiplied by all 192 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
A2B_cF96_227_abf_cd-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF96, then the space-group number 227, then the Wyckoff letters occupied by each element in turn (O: 8a; O: 8b; Sb: 16c; Sb: 16d; O: 48f). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: D6₂ (Obsolete).
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2B_cF96_227_abf_cd-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.
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