Crystal Lab › Prototype structures › Trigonal
K₂Pt(SCN)₆ (H6₃)
Trigonal · space group P-3m1 (No. 164) · Pearson hP9 · Strukturbericht H63
Symmetry elements and Wyckoff positions (interactive)
K₂Pt(SCN)₆ (H6₃) in P-3m1
SettingUnit cell
- Lattice constants
- a = 6.730 Å, b = 6.730 Å, c = 10.260 Å; α = 90.00°, β = 90.00°, γ = 120.00°
- Cell volume
- 402.4 ų
- Atoms in the conventional cell
- 9 (Pt 1, K 2, S 6)
- Formula units Z
- 1
- Pearson symbol
- hP9 — hexagonal / trigonal, primitive lattice, 9 atoms per conventional cell
- Symmetry operations
- 12 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Pt2 | Pt | 1a | 1 | 0.0000 | 0.0000 | 0.0000 |
| K1 | K | 2d | 2 | 0.3333 | 0.6667 | 0.5000 |
| S3 | S | 6i | 6 | 0.1350 | 0.8650 | 0.1125 |
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 9 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
A2BC6_hP9_164_d_a_i-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol hP9, then the space-group number 164, then the Wyckoff letters occupied by each element in turn (Pt: 1a; K: 2d; S: 6i). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
(NH₄)₂Pt(SCN)₆, Rb₂Pt(SCN)₆ <!--beginning with an
Note: H6₃.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2BC6_hP9_164_d_a_i-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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