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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

Setting
Loading the group…
x = 0.10, y = 0.17, z = 0.08

Unit 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

SiteElementWyckoffMultiplicityxyz
Ag1Ag2c20.25000.25000.5806
La2La2c20.25000.25000.8908
O3O2c20.25000.25000.0770
O4O2c20.25000.25000.4040
Ti5Ti2c20.25000.25000.2760
O6O4f40.75000.25000.2410

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 →