Crystal Lab › Prototype structures › Cubic
Gananite (BiF₃, D0₃)
Cubic · space group Fm-3m (No. 225) · Pearson cF16 · Strukturbericht D03 · mineral: gananite
Symmetry elements and Wyckoff positions (interactive)
Gananite (BiF₃, D0₃) in Fm-3m
SettingUnit cell
- Lattice constants
- a = 5.853 Å, b = 5.853 Å, c = 5.853 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 200.5 ų
- Atoms in the conventional cell
- 16 (Bi 4, F 12)
- Formula units Z
- 4
- Pearson symbol
- cF16 — cubic, face-centred lattice, 16 atoms per conventional cell
- Symmetry operations
- 192 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Bi1 | Bi | 4a | 4 | 0.0000 | 0.0000 | 0.0000 |
| F2 | F | 4b | 4 | 0.5000 | 0.5000 | 0.5000 |
| F3 | F | 8c | 8 | 0.2500 | 0.2500 | 0.2500 |
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 16 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
AB3_cF16_225_a_bc-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF16, then the space-group number 225, then the Wyckoff letters occupied by each element in turn (Bi: 4a; F: 4b; F: 8c). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
AgLi₃, AlCu₃, AlFe₃, AmBa₃, AsLi₃, AsNa₃, AsPd₃, AuLi₃, BiCs₃, BiFe₃, β-BiK₃ (HT), BiLi₃, BiO₃, BiPd₃, BiRb₃, CaH₃, CdLi₃, CeCd₃, CeH₃, CeO₃, CeMg₃, DyMg₃, ErH₃, FeH₃, GaFe₃, GaMn₃, GdH₃, GdMg₃, GeCo₃, GeCu₃, GeFe₃, GeLi₃, GeMg₃, GeMn₃, HoH₃, HgLi₃, IAg₃, InCa₃, InSr₃, LaH₃, LaMg₃, LaO₃, LuH₃, MgAg₃, MgCe₃, MgH₃, MnFe₃, NNa₃, NbO₃, NbSr₃, NdCd₃, NdH₃, NdMg₃, NpBa₃, OAl₃, OFe₃, OMo₃, PLi₃, PbF₃, PbLi₃, PrCd₃, PrH₃, PrMg₃, PuH₃, RbBi₃, RuK₃, SAg₃, SLi₃, SPd₃, β-SbCu₃ (HT), SbK₃, SbLi₃, SbNi₃ (HT), ScH₃, SePd₃, SiCo₃, SiFe₃, SiMg₃, SiMn₃, SiNa₃, SmCd₃, SmMg₃, SmO₃, γ-SnCu₃ (HT), SnLi₃, SnNi₃ (HT)
Note: D0₃.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB3_cF16_225_a_bc-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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