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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

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

Unit 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

SiteElementWyckoffMultiplicityxyz
Fe1Fe4e40.00000.93700.2500
Fe2Fe4e40.00000.68700.2500
Li3Li4e40.00000.43800.2500
Li4Li4e40.00000.15000.2500
O5O8f80.25600.56400.7350
O6O8f80.25100.81200.7330

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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