Crystal Lab › Prototype structures › Tetragonal
AgLaTiO₄
Tetragonal · space group P4/nmm (No. 129) · Pearson tP14
Symmetry elements and Wyckoff positions (interactive)
AgLaTiO₄ in P4/nmm
SettingUnit cell
- Lattice constants
- a = 3.747 Å, b = 3.747 Å, c = 13.275 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 186.4 ų
- Atoms in the conventional cell
- 14 (Ag 2, La 2, O 8, Ti 2)
- Formula units Z
- 2
- Pearson symbol
- tP14 — tetragonal, primitive lattice, 14 atoms per conventional cell
- Symmetry operations
- 16 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ag1 | Ag | 2c | 2 | 0.2500 | 0.2500 | 0.5806 |
| La2 | La | 2c | 2 | 0.2500 | 0.2500 | 0.8908 |
| O3 | O | 2c | 2 | 0.2500 | 0.2500 | 0.0770 |
| O4 | O | 2c | 2 | 0.2500 | 0.2500 | 0.4040 |
| Ti5 | Ti | 2c | 2 | 0.2500 | 0.2500 | 0.2760 |
| O6 | O | 4f | 4 | 0.7500 | 0.2500 | 0.2410 |
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 14 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
ABC4D_tP14_129_c_c_2cf_c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP14, then the space-group number 129, then the Wyckoff letters occupied by each element in turn (Ag: 2c; La: 2c; O: 2c; O: 2c; Ti: 2c; O: 4f). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
GdNaTiO₄, LaNaTiO₄, NaNdTiO₄, NaPrTiO₄, NaSmTiO₄ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry ABC4D_tP14_129_c_c_2cf_c-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.
← Sr₂CuGaSO₃: ABC3DE2_tP16_129_a_c_cf_c_2c-001 — CuGaO₃SSr₂ · Space group P4/nmm (26 prototypes) · All prototypes · LaOAgS →