Crystal Lab › Prototype structures › Tetragonal
Pd₄Se
Tetragonal · space group P-421c (No. 114) · Pearson tP10
Symmetry elements and Wyckoff positions (interactive)
Pd₄Se in P-421c
SettingUnit cell
- Lattice constants
- a = 5.232 Å, b = 5.232 Å, c = 5.647 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 154.6 ų
- Atoms in the conventional cell
- 10 (Se 2, Pd 8)
- Formula units Z
- 2
- Pearson symbol
- tP10 — tetragonal, primitive lattice, 10 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Se2 | Se | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Pd1 | Pd | 8e | 8 | 0.6260 | 0.7680 | 0.8460 |
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 10 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
A4B_tP10_114_e_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP10, then the space-group number 114, then the Wyckoff letters occupied by each element in turn (Se: 2a; Pd: 8e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Pd₄S <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A4B_tP10_114_e_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.