Crystal Lab › Prototype structures › Monoclinic
YO(OH)
Monoclinic · space group P121/m1 (No. 11) · Pearson mP6
Symmetry elements and Wyckoff positions (interactive)
YO(OH) in P121/m1
SettingUnit cell
- Lattice constants
- a = 4.280 Å, b = 3.630 Å, c = 5.925 Å; α = 90.00°, β = 70.63°, γ = 90.00°
- Cell volume
- 86.8 ų
- Atoms in the conventional cell
- 6 (O 4, Y 2)
- Formula units Z
- 2
- Pearson symbol
- mP6 — monoclinic, primitive lattice, 6 atoms per conventional cell
- Symmetry operations
- 4 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| O1 | O | 2e | 2 | 0.2290 | 0.2500 | 0.5520 |
| OH2 | O | 2e | 2 | 0.2520 | 0.2500 | 0.0580 |
| Y3 | Y | 2e | 2 | 0.6690 | 0.2500 | 0.6880 |
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 6 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
ABC_mP6_11_e_e_e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP6, then the space-group number 11, then the Wyckoff letters occupied by each element in turn (O: 2e; O: 2e; Y: 2e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
HoO(OH), ErO(OH), YbO(OH) <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry ABC_mP6_11_e_e_e-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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