Crystal Lab › Prototype structures › Monoclinic
High Pressure Mn₃TeO₆ Double Perovskite Mn₃O₆Te
Monoclinic · space group P121/c1 (No. 14) · Pearson mP20
Symmetry elements and Wyckoff positions (interactive)
High Pressure Mn₃TeO₆ Double Perovskite in P121/c1
SettingUnit cell
- Lattice constants
- a = 7.809 Å, b = 5.452 Å, c = 9.463 Å; α = 90.00°, β = 145.98°, γ = 90.00°
- Cell volume
- 225.4 ų
- Atoms in the conventional cell
- 20 (Mn 6, Te 2, O 12)
- Formula units Z
- 2
- Pearson symbol
- mP20 — monoclinic, primitive lattice, 20 atoms per conventional cell
- Symmetry operations
- 4 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Mn1 | Mn | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Te2 | Te | 2b | 2 | 0.5000 | 0.0000 | 0.0000 |
| Mn3 | Mn | 4e | 4 | 0.7490 | 0.0475 | 0.4887 |
| O4 | O | 4e | 4 | 0.5869 | 0.2784 | 0.1677 |
| O5 | O | 4e | 4 | 0.2626 | 0.1745 | 0.7106 |
| O6 | O | 4e | 4 | 0.1579 | 0.9244 | 0.8794 |
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 20 atoms drawn above are these sites multiplied by all 4 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
A3B6C_mP20_14_ae_3e_b-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP20, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (Mn: 2a; Te: 2b; Mn: 4e; O: 4e; O: 4e; O: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: HP.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A3B6C_mP20_14_ae_3e_b-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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