Crystal Lab › Prototype structures › Cubic
Li₂NiGe₃O₅
Cubic · space group P4332 (No. 212) · Pearson cP56
Symmetry elements and Wyckoff positions (interactive)
Li₂NiGe₃O₅ in P4332
SettingUnit cell
- Lattice constants
- a = 8.180 Å, b = 8.180 Å, c = 8.180 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 547.3 ų
- Atoms in the conventional cell
- 56 (Ni 4, Li 8, O 32, Ge 12)
- Formula units Z
- 4
- Pearson symbol
- cP56 — cubic, primitive lattice, 56 atoms per conventional cell
- Symmetry operations
- 24 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ni1 | Ni | 4a | 4 | 0.1250 | 0.1250 | 0.1250 |
| Li2 | Li | 8c | 8 | 0.5180 | 0.5180 | 0.5180 |
| O3 | O | 8c | 8 | 0.8850 | 0.8850 | 0.8850 |
| Ge4 | Ge | 12d | 12 | 0.1250 | 0.6223 | 0.6277 |
| O5 | O | 24e | 24 | 0.5940 | 0.6270 | 0.8940 |
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 56 atoms drawn above are these sites multiplied by all 24 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
A3B2CD8_cP56_212_d_c_a_ce-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP56, then the space-group number 212, then the Wyckoff letters occupied by each element in turn (Ni: 4a; Li: 8c; O: 8c; Ge: 12d; O: 24e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A3B2CD8_cP56_212_d_c_a_ce-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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