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Crystal Lab › Prototype structures › Tetragonal

MoPO₅

Tetragonal · space group P4/n (No. 85) · Pearson tP14

Symmetry elements and Wyckoff positions (interactive)

MoPO₅ in P4/n

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

Unit cell

Lattice constants
a = 6.177 Å, b = 6.177 Å, c = 4.293 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
163.8 ų
Atoms in the conventional cell
14 (P 2, Mo 2, O 10)
Formula units Z
2
Pearson symbol
tP14 — tetragonal, primitive lattice, 14 atoms per conventional cell
Symmetry operations
8 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
P4P2a20.25000.75000.0000
Mo1Mo2c20.25000.25000.6975
O2O2c20.25000.25000.3102
O3O8g80.31250.94460.7994

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 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

AB5C_tP14_85_c_cg_a-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 85, then the Wyckoff letters occupied by each element in turn (P: 2a; Mo: 2c; O: 2c; O: 8g). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

MoVO₅, NbPO₅ <!--beginning with an

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB5C_tP14_85_c_cg_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.

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