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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

Setting
Loading the group…
x = 0.10, y = 0.17, z = 0.08

Unit 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

SiteElementWyckoffMultiplicityxyz
Pt11Pt2a20.00000.00000.0000
C1C4e40.23520.82510.2971
C2C4e40.75980.90470.9125
C3C4e40.77870.94110.4471
H4H4e40.54860.90850.4253
H5H4e40.41740.92590.2153
K6K4e40.50140.84730.8950
N7N4e40.33050.82040.3608
N8N4e40.67300.85610.7767
N9N4e40.70090.98990.2780
O10O4e40.49130.91240.2555
S12S4e40.09880.82160.2245
S13S4e40.88490.98070.1297
S14S4e40.88710.86110.6813

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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