Crystal Lab › Prototype structures › Orthorhombic
CeTe₃
Orthorhombic · space group Ama2 (No. 40) · Pearson oC16
Symmetry elements and Wyckoff positions (interactive)
CeTe₃ in Ama2
SettingUnit cell
- Lattice constants
- a = 4.385 Å, b = 25.974 Å, c = 4.373 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 498.1 ų
- Atoms in the conventional cell
- 16 (Ce 4, Te 12)
- Formula units Z
- 4
- Pearson symbol
- oC16 — orthorhombic, base-centred lattice, 16 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ce1 | Ce | 4b | 4 | 0.2500 | 0.8311 | 0.0000 |
| Te2 | Te | 4b | 4 | 0.2500 | 0.7042 | 0.0021 |
| Te3 | Te | 4b | 4 | 0.2500 | 0.5697 | 0.4966 |
| Te4 | Te | 4b | 4 | 0.2500 | 0.9300 | 0.4978 |
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 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
AB3_oC16_40_b_3b-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oC16, then the space-group number 40, then the Wyckoff letters occupied by each element in turn (Ce: 4b; Te: 4b; Te: 4b; Te: 4b). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
NdTe₃, PrTe₃ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB3_oC16_40_b_3b-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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