Crystal Lab › Prototype structures › Orthorhombic
β-Na₂PtO₃ Na₂O₃Pt
Orthorhombic · space group Fddd (No. 70) · Pearson oF96
Symmetry elements and Wyckoff positions (interactive)
β-Na₂PtO₃ in Fddd
SettingUnit cell
- Lattice constants
- a = 18.830 Å, b = 6.280 Å, c = 9.060 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 1071.4 ų
- Atoms in the conventional cell
- 96 (Na 32, Pt 16, O 48)
- Formula units Z
- 16
- Pearson symbol
- oF96 — orthorhombic, face-centred lattice, 96 atoms per conventional cell
- Symmetry operations
- 32 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Na1 | Na | 16e | 16 | 0.3830 | 0.1250 | 0.1250 |
| Na2 | Na | 16e | 16 | 0.7040 | 0.1250 | 0.1250 |
| Pt5 | Pt | 16e | 16 | 0.2088 | 0.1250 | 0.1250 |
| O3 | O | 16f | 16 | 0.1250 | 0.9140 | 0.1250 |
| O4 | O | 32h | 32 | 0.7830 | 0.4090 | 0.1480 |
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 96 atoms drawn above are these sites multiplied by all 32 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
A2B3C_oF96_70_2e_fh_e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oF96, then the space-group number 70, then the Wyckoff letters occupied by each element in turn (Na: 16e; Na: 16e; Pt: 16e; O: 16f; O: 32h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
β-Li₂IrO₃, β-Na₂PrO₃ <!--beginning with an
Note: \beta-Na₂PtO₃.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2B3C_oF96_70_2e_fh_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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