Crystal Lab › Prototype structures › Tetragonal
AgUF₆
Tetragonal · space group P42/mcm (No. 132) · Pearson tP16
Symmetry elements and Wyckoff positions (interactive)
AgUF₆ in P42/mcm
SettingUnit cell
- Lattice constants
- a = 5.423 Å, b = 5.423 Å, c = 7.950 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 233.8 ų
- Atoms in the conventional cell
- 16 (Ag 2, U 2, F 12)
- Formula units Z
- 2
- Pearson symbol
- tP16 — tetragonal, primitive lattice, 16 atoms per conventional cell
- Symmetry operations
- 16 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ag1 | Ag | 2b | 2 | 0.0000 | 0.0000 | 0.2500 |
| U4 | U | 2c | 2 | 0.5000 | 0.5000 | 0.0000 |
| F2 | F | 4i | 4 | 0.8000 | 0.8000 | 0.0000 |
| F3 | F | 8o | 8 | 0.7000 | 0.7000 | 0.3330 |
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 16 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
AB6C_tP16_132_b_io_c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP16, then the space-group number 132, then the Wyckoff letters occupied by each element in turn (Ag: 2b; U: 2c; F: 4i; F: 8o). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
RbUF₆, TlUF₆, (NH₄)UF₆ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB6C_tP16_132_b_io_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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