Crystal Lab › Prototype structures › Orthorhombic
Orthorhombic ClF₃
Orthorhombic · space group Pnma (No. 62) · Pearson oP16
Symmetry elements and Wyckoff positions (interactive)
Orthorhombic ClF₃ in Pnma
SettingUnit cell
- Lattice constants
- a = 8.820 Å, b = 6.090 Å, c = 4.520 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 242.8 ų
- Atoms in the conventional cell
- 16 (Cl 4, F 12)
- Formula units Z
- 4
- Pearson symbol
- oP16 — orthorhombic, primitive lattice, 16 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cl1 | Cl | 4c | 4 | 0.1582 | 0.2500 | 0.3790 |
| F2 | F | 4c | 4 | 0.0422 | 0.2500 | 0.1010 |
| F3 | F | 8d | 8 | 0.1517 | 0.5315 | 0.3634 |
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 8 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
AB3_oP16_62_c_cd-005: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP16, then the space-group number 62, then the Wyckoff letters occupied by each element in turn (Cl: 4c; F: 4c; F: 8d). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: Orthorhombic ClF₃.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB3_oP16_62_c_cd-005 (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.
← Cementite (Fe₃C, D0₁₁) · Space group Pnma (113 prototypes) · All prototypes · Berthierite (FeSb₂S₄, E3₃) →