Crystal Lab › Prototype structures › Monoclinic
Approximate High Temperature Mo₈O₂₃
Monoclinic · space group P12/c1 (No. 13) · Pearson mP62
Symmetry elements and Wyckoff positions (interactive)
Approximate High Temperature Mo₈O₂₃ in P12/c1
SettingUnit cell
- Lattice constants
- a = 13.384 Å, b = 4.062 Å, c = 16.883 Å; α = 90.00°, β = 106.27°, γ = 90.00°
- Cell volume
- 881.0 ų
- Atoms in the conventional cell
- 62 (O 46, Mo 16)
- Formula units Z
- 2
- Pearson symbol
- mP62 — monoclinic, primitive lattice, 62 atoms per conventional cell
- Symmetry operations
- 4 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| O5 | O | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Mo1 | Mo | 4g | 4 | 0.9360 | 0.0858 | 0.5835 |
| Mo2 | Mo | 4g | 4 | 0.8149 | 0.9131 | 0.7543 |
| Mo3 | Mo | 4g | 4 | 0.6850 | 0.0900 | 0.9210 |
| Mo4 | Mo | 4g | 4 | 0.5534 | 0.9079 | 0.5980 |
| O10 | O | 4g | 4 | 0.9355 | 0.9943 | 0.8357 |
| O11 | O | 4g | 4 | 0.8707 | 0.9930 | 0.6697 |
| O12 | O | 4g | 4 | 0.8011 | 0.9945 | 0.5040 |
| O13 | O | 4g | 4 | 0.7388 | 0.0144 | 0.8368 |
| O14 | O | 4g | 4 | 0.6739 | 0.9891 | 0.6718 |
| O15 | O | 4g | 4 | 0.5887 | 0.0015 | 0.9955 |
| O16 | O | 4g | 4 | 0.5430 | 0.9908 | 0.8468 |
| O6 | O | 4g | 4 | 0.9342 | 0.4988 | 0.5836 |
| O7 | O | 4g | 4 | 0.8089 | 0.4971 | 0.7542 |
| O8 | O | 4g | 4 | 0.6809 | 0.5069 | 0.9230 |
| O9 | O | 4g | 4 | 0.5531 | 0.4918 | 0.5926 |
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 62 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
A8B23_mP62_13_4g_a11g-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP62, then the space-group number 13, then the Wyckoff letters occupied by each element in turn (O: 2a; Mo: 4g; Mo: 4g; Mo: 4g; Mo: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g; O: 4g). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: HT, Approximate.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A8B23_mP62_13_4g_a11g-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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