Crystal Lab › Prototype structures › Monoclinic
CdP₄
Monoclinic · space group P121/c1 (No. 14) · Pearson mP10
Symmetry elements and Wyckoff positions (interactive)
CdP₄ in P121/c1
SettingUnit cell
- Lattice constants
- a = 5.271 Å, b = 5.191 Å, c = 7.655 Å; α = 90.00°, β = 80.53°, γ = 90.00°
- Cell volume
- 206.6 ų
- Atoms in the conventional cell
- 10 (Cd 2, P 8)
- Formula units Z
- 2
- Pearson symbol
- mP10 — monoclinic, primitive lattice, 10 atoms per conventional cell
- Symmetry operations
- 4 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cd1 | Cd | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| P2 | P | 4e | 4 | 0.7410 | 0.2950 | 0.2500 |
| P3 | P | 4e | 4 | 0.6020 | 0.8970 | 0.5970 |
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 10 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
AB4_mP10_14_a_2e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP10, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (Cd: 2a; P: 4e; P: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
MgP₄, OsP₄, RuP₄ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB4_mP10_14_a_2e-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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