Symmetry elements and Wyckoff positions (interactive)
CuMo₃Cl₇ in Pn-3
SettingUnit cell
- Lattice constants
- a = 12.772 Å, b = 12.772 Å, c = 12.772 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 2083.4 ų
- Atoms in the conventional cell
- 88 (Cl 56, Cu 8, Mo 24)
- Formula units Z
- 8
- Pearson symbol
- cP88 — cubic, primitive lattice, 88 atoms per conventional cell
- Symmetry operations
- 24 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cl1 | Cl | 8e | 8 | 0.1377 | 0.1377 | 0.1377 |
| Cu4 | Cu | 8e | 8 | 0.5647 | 0.5647 | 0.5647 |
| Cl2 | Cl | 24h | 24 | 0.3751 | 0.6861 | 0.9282 |
| Cl3 | Cl | 24h | 24 | 0.5831 | 0.8187 | 0.0672 |
| Mo5 | Mo | 24h | 24 | 0.5339 | 0.6376 | 0.0269 |
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 88 atoms drawn above are these sites multiplied by all 24 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
A7BC3_cP88_201_e2h_e_h-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP88, then the space-group number 201, then the Wyckoff letters occupied by each element in turn (Cl: 8e; Cu: 8e; Cl: 24h; Cl: 24h; Mo: 24h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
CuMo₃Br₇, CuW₃Br₇ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A7BC3_cP88_201_e2h_e_h-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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