Crystal Lab › Prototype structures › Trigonal
NaSbF₄(OH)₂ (J1₁₂)
Trigonal · space group P-31c (No. 163) · Pearson hP16 · Strukturbericht J112
Symmetry elements and Wyckoff positions (interactive)
NaSbF₄(OH)₂ (J1₁₂) in P-31c
SettingUnit cell
- Lattice constants
- a = 5.227 Å, b = 5.227 Å, c = 9.980 Å; α = 90.00°, β = 90.00°, γ = 120.00°
- Cell volume
- 236.1 ų
- Atoms in the conventional cell
- 16 (Na 2, Sb 2, F 12)
- Formula units Z
- 2
- Pearson symbol
- hP16 — hexagonal / trigonal, primitive lattice, 16 atoms per conventional cell
- Symmetry operations
- 12 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Na2 | Na | 2b | 2 | 0.0000 | 0.0000 | 0.0000 |
| Sb3 | Sb | 2c | 2 | 0.3333 | 0.6667 | 0.2500 |
| F1 | F | 12i | 12 | 0.3300 | 0.3300 | 0.1500 |
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 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
A6BC_hP16_163_i_b_c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol hP16, then the space-group number 163, then the Wyckoff letters occupied by each element in turn (Na: 2b; Sb: 2c; F: 12i). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: J1₁₂.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6BC_hP16_163_i_b_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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