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High-Temperature ZrW₂O₈ O₈W₂Zr
Cubic · space group Pa-3 (No. 205) · Pearson cP60
Symmetry elements and Wyckoff positions (interactive)
High-Temperature ZrW₂O₈ in Pa-3
SettingUnit cell
- Lattice constants
- a = 9.137 Å, b = 9.137 Å, c = 9.137 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 762.8 ų
- Atoms in the conventional cell
- 60 (Zr 4, O 40, W 16)
- Formula units Z
- 4
- Pearson symbol
- cP60 — cubic, primitive lattice, 60 atoms per conventional cell
- Symmetry operations
- 24 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Zr1 | Zr | 4a | 4 | 0.0000 | 0.0000 | 0.0000 |
| O2 | O | 8c | 8 | 0.5055 | 0.5055 | 0.5055 |
| O3 | O | 8c | 8 | 0.2322 | 0.2322 | 0.2322 |
| W4 | W | 8c | 8 | 0.3394 | 0.3394 | 0.3394 |
| W5 | W | 8c | 8 | 0.6035 | 0.6035 | 0.6035 |
| O6 | O | 24d | 24 | 0.0549 | 0.7911 | 0.9329 |
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 60 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
A10B4C_cP60_205_2cd_2c_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP60, then the space-group number 205, then the Wyckoff letters occupied by each element in turn (Zr: 4a; O: 8c; O: 8c; W: 8c; W: 8c; O: 24d). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
HfW₂O₈ <!--beginning with an
Note: HT ZrW₂O₈.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A10B4C_cP60_205_2cd_2c_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.
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