Crystal Lab › Prototype structures › Tetragonal
Zr₂CuSb₃
Tetragonal · space group P-4m2 (No. 115) · Pearson tP6
Symmetry elements and Wyckoff positions (interactive)
Zr₂CuSb₃ in P-4m2
SettingUnit cell
- Lattice constants
- a = 3.940 Å, b = 3.940 Å, c = 8.697 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 135.0 ų
- Atoms in the conventional cell
- 6 (Cu 1, Sb 3, Zr 2)
- Formula units Z
- 1
- Pearson symbol
- tP6 — tetragonal, primitive lattice, 6 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cu1 | Cu | 1a | 1 | 0.0000 | 0.0000 | 0.0000 |
| Sb2 | Sb | 1b | 1 | 0.5000 | 0.5000 | 0.0000 |
| Sb3 | Sb | 2g | 2 | 0.0000 | 0.5000 | 0.3835 |
| Zr4 | Zr | 2g | 2 | 0.0000 | 0.5000 | 0.7315 |
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 6 atoms drawn above are these sites multiplied by all 8 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
AB3C2_tP6_115_a_bg_g-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP6, then the space-group number 115, then the Wyckoff letters occupied by each element in turn (Cu: 1a; Sb: 1b; Sb: 2g; Zr: 2g). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Hf₂CuSb₃, Hf₂GaSb₃, Ti₂CuSb₃, Zr₂PdSb₃ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB3C2_tP6_115_a_bg_g-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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