Crystal Lab › Prototype structures › Monoclinic
beta'-LiFeO₂ FeLiO₂
Monoclinic · space group C12/c1 (No. 15) · Pearson mC32
Symmetry elements and Wyckoff positions (interactive)
beta'-LiFeO₂ in C12/c1
SettingUnit cell
- Lattice constants
- a = 8.566 Å, b = 11.574 Å, c = 5.197 Å; α = 90.00°, β = 146.06°, γ = 90.00°
- Cell volume
- 287.6 ų
- Atoms in the conventional cell
- 32 (Fe 8, Li 8, O 16)
- Formula units Z
- 8
- Pearson symbol
- mC32 — monoclinic, base-centred lattice, 32 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Fe1 | Fe | 4e | 4 | 0.0000 | 0.9370 | 0.2500 |
| Fe2 | Fe | 4e | 4 | 0.0000 | 0.6870 | 0.2500 |
| Li3 | Li | 4e | 4 | 0.0000 | 0.4380 | 0.2500 |
| Li4 | Li | 4e | 4 | 0.0000 | 0.1500 | 0.2500 |
| O5 | O | 8f | 8 | 0.2560 | 0.5640 | 0.7350 |
| O6 | O | 8f | 8 | 0.2510 | 0.8120 | 0.7330 |
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 32 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
ABC2_mC32_15_2e_2e_2f-002: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mC32, then the space-group number 15, then the Wyckoff letters occupied by each element in turn (Fe: 4e; Fe: 4e; Li: 4e; Li: 4e; O: 8f; O: 8f). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
ErLiO₂, ErNaO₂ <!--beginning with an
Note: \beta'-LiFeO₂.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry ABC2_mC32_15_2e_2e_2f-002 (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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