Crystal Lab › Prototype structures › Tetragonal
Ti₅Te₄
Tetragonal · space group I4/m (No. 87) · Pearson tI18
Symmetry elements and Wyckoff positions (interactive)
Ti₅Te₄ in I4/m
SettingUnit cell
- Lattice constants
- a = 10.164 Å, b = 10.164 Å, c = 3.772 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 389.7 ų
- Atoms in the conventional cell
- 18 (Ti 10, Te 8)
- Formula units Z
- 2
- Pearson symbol
- tI18 — tetragonal, body-centred lattice, 18 atoms per conventional cell
- Symmetry operations
- 16 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ti2 | Ti | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Te1 | Te | 8h | 8 | 0.2797 | 0.9411 | 0.0000 |
| Ti3 | Ti | 8h | 8 | 0.3752 | 0.6856 | 0.0000 |
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 18 atoms drawn above are these sites multiplied by all 16 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
A4B5_tI18_87_h_ah-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tI18, then the space-group number 87, then the Wyckoff letters occupied by each element in turn (Ti: 2a; Te: 8h; Ti: 8h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Mo₅As₄, Nb₅Sb₄, Nb₅Se₄, Nb₅Te₄, Ta₅Sb₄, V₅S₄, V₅Se₄ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A4B5_tI18_87_h_ah-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.
← Na₄UO₅ · Space group I4/m (9 prototypes) · All prototypes · Ba₅Yb₈Ni₄O₂₁ →