Crystal Lab › Prototype structures › Tetragonal
Ti₃P
Tetragonal · space group P42/n (No. 86) · Pearson tP32
Symmetry elements and Wyckoff positions (interactive)
Ti₃P in P42/n
SettingUnit cell
- Lattice constants
- a = 9.998 Å, b = 9.998 Å, c = 4.998 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 499.6 ų
- Atoms in the conventional cell
- 32 (P 8, Ti 24)
- Formula units Z
- 8
- Pearson symbol
- tP32 — tetragonal, primitive lattice, 32 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| P1 | P | 8g | 8 | 0.0439 | 0.2081 | 0.5354 |
| Ti2 | Ti | 8g | 8 | 0.1101 | 0.2215 | 0.0295 |
| Ti3 | Ti | 8g | 8 | 0.1427 | 0.6661 | 0.7153 |
| Ti4 | Ti | 8g | 8 | 0.5334 | 0.0696 | 0.7593 |
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 32 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
AB3_tP32_86_g_3g-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP32, then the space-group number 86, then the Wyckoff letters occupied by each element in turn (P: 8g; Ti: 8g; Ti: 8g; Ti: 8g). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
α-Ta₃P, Ti₃Si, Zr₃P <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB3_tP32_86_g_3g-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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