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Double Perovskite (Ba₂MnWO₆)

Cubic · space group Fm-3m (No. 225) · Pearson cF40 · mineral: double perovskite

Symmetry elements and Wyckoff positions (interactive)

Double Perovskite (Ba₂MnWO₆) in Fm-3m

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

Unit cell

Lattice constants
a = 8.198 Å, b = 8.198 Å, c = 8.198 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
551.1 ų
Atoms in the conventional cell
40 (Mn 4, W 4, Ba 8, O 24)
Formula units Z
4
Pearson symbol
cF40 — cubic, face-centred lattice, 40 atoms per conventional cell
Symmetry operations
192 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Mn2Mn4a40.00000.00000.0000
W4W4b40.50000.50000.5000
Ba1Ba8c80.25000.25000.2500
O3O24e240.26540.00000.0000

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 40 atoms drawn above are these sites multiplied by all 192 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

A2BC6D_cF40_225_c_a_e_b-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF40, then the space-group number 225, then the Wyckoff letters occupied by each element in turn (Mn: 4a; W: 4b; Ba: 8c; O: 24e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Ba₂CaReO₆, Ba₂CaWO₆, Ba₂CdReO₆, Ba₂DyIrO₆, Ba₂IrNiO₆, Ba₂LiOsO₆, Ba₂MgReO₆, Ba₂NaOsO₆, Ba₂NdIrO₆, Ba₂SmIrO₆, Ba₂ZnReO₆, Bi₂FeCrO₆, Ca₂MnReO₆, Cs₂AgBBr₆, Cs₂AgBCl₆, Cs₂AgBiBr₆, Cs₂AgInBr₆, Cs₂AgInCl₆, Cs₂LiTlF₆, Cs₂NaBBr₆, Cs₂NaBCl₆, Cs₂NaBiCl₆, Cs₂NaInBr₆, Cs₂NaInCl₆, Cs₂NaLaCl₆, Cu₂TiSiO₆, K₂NaAlF₆ (elpasolite), K₂NaBiCl₆, La₂TcNiO₆, Mn₂FeSbO₆, Rb₂NaBiCl₆, Sr₂CrReO₆, Sr₂FeMoO₆, Sr₂ReMoO₆, Sr₂TiFeO₆, Sr₂YIrO₆, (La_{0.5}Sc_{0.5})₂MnCoO₆ <!--beginning with an

Note: Double Perovskite.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2BC6D_cF40_225_c_a_e_b-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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