Crystal Lab › Prototype structures › Cubic
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
SettingUnit 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
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Mn2 | Mn | 4a | 4 | 0.0000 | 0.0000 | 0.0000 |
| W4 | W | 4b | 4 | 0.5000 | 0.5000 | 0.5000 |
| Ba1 | Ba | 8c | 8 | 0.2500 | 0.2500 | 0.2500 |
| O3 | O | 24e | 24 | 0.2654 | 0.0000 | 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 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.
← Th₆Mn₂₃ (D8_{a}) · Space group Fm-3m (28 prototypes) · All prototypes · fcc Fullerene (K₃C₆₀) →