Crystal Lab › Prototype structures › Cubic
Co(H₂O)₂(C₄O₄)
Cubic · space group Pn-3n (No. 222) · Pearson cP360
Symmetry elements and Wyckoff positions (interactive)
Co(H₂O)₂(C₄O₄) in Pn-3n
SettingUnit cell
- Lattice constants
- a = 16.280 Å, b = 16.280 Å, c = 16.280 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 4314.8 ų
- Atoms in the conventional cell
- 360 (Co 24, C 96, H 96, O 144)
- Formula units Z
- 24
- Pearson symbol
- cP360 — cubic, primitive lattice, 360 atoms per conventional cell
- Symmetry operations
- 48 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Co3 | Co | 24h | 24 | 0.2500 | 0.4983 | 0.4983 |
| C1 | C | 48i | 48 | 0.3092 | 0.4845 | 0.2727 |
| C2 | C | 48i | 48 | 0.5010 | 0.6905 | 0.2718 |
| H4 | H | 48i | 48 | 0.4710 | 0.6020 | 0.1200 |
| H5 | H | 48i | 48 | 0.4170 | 0.5250 | 0.1240 |
| O6 | O | 48i | 48 | 0.4605 | 0.5374 | 0.1368 |
| O7 | O | 48i | 48 | 0.3808 | 0.4868 | 0.3018 |
| O8 | O | 48i | 48 | 0.5040 | 0.6184 | 0.2998 |
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 360 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
A4BC4D6_cP360_222_2i_h_2i_3i-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP360, then the space-group number 222, then the Wyckoff letters occupied by each element in turn (Co: 24h; C: 48i; C: 48i; H: 48i; H: 48i; O: 48i; O: 48i; O: 48i). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Fe(H₂O)₂(C₄O₄), Zn(H₂O)₂(C₄O₄) <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A4BC4D6_cP360_222_2i_h_2i_3i-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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