Symmetry elements and Wyckoff positions (interactive)
NaPt₃O₄ in Pm-3n
SettingUnit cell
- Lattice constants
- a = 5.690 Å, b = 5.690 Å, c = 5.690 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 184.2 ų
- Atoms in the conventional cell
- 16 (Na 2, Pt 6, O 8)
- Formula units Z
- 2
- Pearson symbol
- cP16 — cubic, primitive lattice, 16 atoms per conventional cell
- Symmetry operations
- 48 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Na1 | Na | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Pt3 | Pt | 6c | 6 | 0.2500 | 0.0000 | 0.5000 |
| O2 | O | 8e | 8 | 0.2500 | 0.2500 | 0.2500 |
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 16 atoms drawn above are these sites multiplied by all 48 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
AB4C3_cP16_223_a_e_c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP16, then the space-group number 223, then the Wyckoff letters occupied by each element in turn (Na: 2a; Pt: 6c; O: 8e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
(Sr_{x}Li_{1-x})Pd₃O₄, Ag₃PdO₄, CaPd₃O₄, CdPd₃O₄, CdPt₃O₄, EuPd₃O₄, LiPt₃O₄, NaPd₃O₄, NaPt₃O₄, NiPt₃O₄, SrPd₃O₄ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB4C3_cP16_223_a_e_c-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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