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[(CH₃)₄N][Cu₂(NCS)₃]

Tetragonal · space group P42cm (No. 101) · Pearson tP112

Symmetry elements and Wyckoff positions (interactive)

[(CH₃)₄N][Cu₂(NCS)₃] in P42cm

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

Unit cell

Lattice constants
a = 11.164 Å, b = 11.164 Å, c = 10.638 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
1325.9 ų
Atoms in the conventional cell
112 (N 16, H 48, C 28, Cu 8, S 12)
Formula units Z
4
Pearson symbol
tP112 — tetragonal, primitive lattice, 112 atoms per conventional cell
Symmetry operations
8 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
N14N4c40.00000.50000.2422
H8H8e80.10980.57640.3705
H9H8e80.06710.66540.2676
C1C4d40.11330.11330.0015
C2C4d40.61420.61420.8417
C3C4d40.77150.77150.5165
Cu6Cu4d40.91400.91400.7148
Cu7Cu4d40.58510.58510.5552
N15N4d40.89070.89070.8934
N16N4d40.60880.60880.7347
N17N4d40.82340.82340.5902
S18S4d40.12250.12250.1575
S19S4d40.62450.62450.9977
S20S4d40.69470.69470.4111
C4C8e80.04340.60120.3209
C5C8e80.10050.45770.1612
H8H8e80.10980.57640.3705
H9H8e80.06710.66540.2676
H10H8e80.98050.62720.3745
H11H8e80.07650.39170.1106
H12H8e80.12350.52250.1085
H13H8e80.16650.43480.2125

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 112 atoms drawn above are these sites multiplied by all 8 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

A7B2C12D4E3_tP112_101_3d2e_2d_6e_c3d_3d-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP112, then the space-group number 101, then the Wyckoff letters occupied by each element in turn (N: 4c; H: 8e; H: 8e; C: 4d; C: 4d; C: 4d; Cu: 4d; Cu: 4d; N: 4d; N: 4d; N: 4d; S: 4d; S: 4d; S: 4d; C: 8e; C: 8e; H: 8e; H: 8e; H: 8e; H: 8e; H: 8e; H: 8e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A7B2C12D4E3_tP112_101_3d2e_2d_6e_c3d_3d-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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