Crystal Lab › Prototype structures › Hexagonal
Cd(OH)Cl (E0₃)
Hexagonal · space group P63mc (No. 186) · Pearson hP8 · Strukturbericht E03
Symmetry elements and Wyckoff positions (interactive)
Cd(OH)Cl (E0₃) in P63mc
SettingUnit cell
- Lattice constants
- a = 3.665 Å, b = 3.665 Å, c = 10.230 Å; α = 90.00°, β = 90.00°, γ = 120.00°
- Cell volume
- 119.0 ų
- Atoms in the conventional cell
- 8 (H 2, O 2, Cd 2, Cl 2)
- Formula units Z
- 2
- Pearson symbol
- hP8 — hexagonal / trigonal, primitive lattice, 8 atoms per conventional cell
- Symmetry operations
- 12 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| H3 | H | 2a | 2 | 0.0000 | 1.0000 | 0.1800 |
| O4 | O | 2a | 2 | 0.0000 | 1.0000 | 0.0892 |
| Cd1 | Cd | 2b | 2 | 0.3333 | 0.6667 | 0.0079 |
| Cl2 | Cl | 2b | 2 | 0.3333 | 0.6667 | 0.3433 |
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 8 atoms drawn above are these sites multiplied by all 12 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
ABCD_hP8_186_b_b_a_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol hP8, then the space-group number 186, then the Wyckoff letters occupied by each element in turn (H: 2a; O: 2a; Cd: 2b; Cl: 2b). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: E0₃.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry ABCD_hP8_186_b_b_a_a-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.
← BaCaSiO₄ · Space group P63mc (26 prototypes) · All prototypes · LiGaGe Crystal — GaGeLi →