Crystal Lab › Prototype structures › Monoclinic
K₂Pt(SCN)₆ cdot 2H₂O
Monoclinic · space group P121/c1 (No. 14) · Pearson mP54
Symmetry elements and Wyckoff positions (interactive)
K₂Pt(SCN)₆ cdot 2H₂O in P121/c1
SettingUnit cell
- Lattice constants
- a = 13.980 Å, b = 11.143 Å, c = 7.303 Å; α = 90.00°, β = 126.13°, γ = 90.00°
- Cell volume
- 918.8 ų
- Atoms in the conventional cell
- 54 (Pt 2, C 12, H 8, K 4, N 12, O 4, S 12)
- Formula units Z
- 2
- Pearson symbol
- mP54 — monoclinic, primitive lattice, 54 atoms per conventional cell
- Symmetry operations
- 4 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Pt11 | Pt | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| C1 | C | 4e | 4 | 0.2352 | 0.8251 | 0.2971 |
| C2 | C | 4e | 4 | 0.7598 | 0.9047 | 0.9125 |
| C3 | C | 4e | 4 | 0.7787 | 0.9411 | 0.4471 |
| H4 | H | 4e | 4 | 0.5486 | 0.9085 | 0.4253 |
| H5 | H | 4e | 4 | 0.4174 | 0.9259 | 0.2153 |
| K6 | K | 4e | 4 | 0.5014 | 0.8473 | 0.8950 |
| N7 | N | 4e | 4 | 0.3305 | 0.8204 | 0.3608 |
| N8 | N | 4e | 4 | 0.6730 | 0.8561 | 0.7767 |
| N9 | N | 4e | 4 | 0.7009 | 0.9899 | 0.2780 |
| O10 | O | 4e | 4 | 0.4913 | 0.9124 | 0.2555 |
| S12 | S | 4e | 4 | 0.0988 | 0.8216 | 0.2245 |
| S13 | S | 4e | 4 | 0.8849 | 0.9807 | 0.1297 |
| S14 | S | 4e | 4 | 0.8871 | 0.8611 | 0.6813 |
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 54 atoms drawn above are these sites multiplied by all 4 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
A6B4C2D6E2FG6_mP54_14_3e_2e_e_3e_e_a_3e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP54, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (Pt: 2a; C: 4e; C: 4e; C: 4e; H: 4e; H: 4e; K: 4e; N: 4e; N: 4e; N: 4e; O: 4e; S: 4e; S: 4e; S: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Rb₂Pt(SCN)₆ cdot 2H₂O, NH₄₂Pt(SCN)₆ cdot 2H₂O <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6B4C2D6E2FG6_mP54_14_3e_2e_e_3e_e_a_3e-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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