Crystal Lab › Prototype structures › Orthorhombic
PbV₂O₆
Orthorhombic · space group Pnma (No. 62) · Pearson oP36
Symmetry elements and Wyckoff positions (interactive)
PbV₂O₆ in Pnma
SettingUnit cell
- Lattice constants
- a = 9.771 Å, b = 3.684 Å, c = 12.713 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 457.6 ų
- Atoms in the conventional cell
- 36 (O 24, Pb 4, V 8)
- Formula units Z
- 4
- Pearson symbol
- oP36 — orthorhombic, primitive lattice, 36 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| O1 | O | 4c | 4 | 0.3072 | 0.2500 | 0.9331 |
| O2 | O | 4c | 4 | 0.0323 | 0.2500 | 0.4103 |
| O3 | O | 4c | 4 | 0.2808 | 0.2500 | 0.2873 |
| O4 | O | 4c | 4 | 0.3932 | 0.2500 | 0.4764 |
| O5 | O | 4c | 4 | 0.9780 | 0.2500 | 0.7521 |
| O6 | O | 4c | 4 | 0.1736 | 0.2500 | 0.6055 |
| Pb7 | Pb | 4c | 4 | 0.1283 | 0.2500 | 0.1155 |
| V8 | V | 4c | 4 | 0.0048 | 0.2500 | 0.6242 |
| V9 | V | 4c | 4 | 0.2399 | 0.2500 | 0.4100 |
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 36 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
A6BC2_oP36_62_6c_c_2c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP36, then the space-group number 62, then the Wyckoff letters occupied by each element in turn (O: 4c; O: 4c; O: 4c; O: 4c; O: 4c; O: 4c; Pb: 4c; V: 4c; V: 4c). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
BaV₂O₆, CdV₂O₆, CaV₂O₆, SrV₂O₆, MnSeTeO₆ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6BC2_oP36_62_6c_c_2c-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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