Crystal Lab › Prototype structures › Cubic
BaHg₁₁ (D2_{e})
Cubic · space group Pm-3m (No. 221) · Pearson cP36 · Strukturbericht D2e
Symmetry elements and Wyckoff positions (interactive)
BaHg₁₁ (D2_{e}) in Pm-3m
SettingUnit cell
- Lattice constants
- a = 9.600 Å, b = 9.600 Å, c = 9.600 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 884.7 ų
- Atoms in the conventional cell
- 36 (Hg 33, Ba 3)
- Formula units Z
- 3
- Pearson symbol
- cP36 — cubic, primitive lattice, 36 atoms per conventional cell
- Symmetry operations
- 48 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Hg2 | Hg | 1a | 1 | 0.0000 | 0.0000 | 0.0000 |
| Ba1 | Ba | 3c | 3 | 0.0000 | 0.5000 | 0.5000 |
| Hg3 | Hg | 8g | 8 | 0.3450 | 0.3450 | 0.3450 |
| Hg4 | Hg | 12i | 12 | 0.0000 | 0.2250 | 0.2250 |
| Hg5 | Hg | 12j | 12 | 0.5000 | 0.1150 | 0.1150 |
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 36 atoms drawn above are these sites multiplied by all 48 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
AB11_cP36_221_c_agij-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP36, then the space-group number 221, then the Wyckoff letters occupied by each element in turn (Hg: 1a; Ba: 3c; Hg: 8g; Hg: 12i; Hg: 12j). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
CeCd₁₁, KHg₁₁, LaCd₁₁, NdCd₁₁, PrCd₁₁, PuCd₁₁, RbHg₁₁, SmCd₁₁, SrHg₁₁, Eu(Ag_{x}Au_{11-x}) <!--beginning with an
Note: D2_{e}.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB11_cP36_221_c_agij-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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