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CuCrCl₅[NH₃]₆ Cl₅CrCuH₁₈N₆

Cubic · space group Fd-3c (No. 228) · Pearson cF416

Symmetry elements and Wyckoff positions (interactive)

CuCrCl₅[NH₃]₆ in Fd-3c

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

Unit cell

Lattice constants
a = 22.265 Å, b = 22.265 Å, c = 22.265 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
11037.4 ų
Atoms in the conventional cell
416 (Cu 32, Cr 32, Cl 160, N 192)
Formula units Z
32
Pearson symbol
cF416 — cubic, face-centred lattice, 416 atoms per conventional cell
Symmetry operations
192 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Cu4Cu32b320.25000.25000.2500
Cr3Cr32c320.00000.00000.0000
Cl1Cl64e640.19000.19000.1900
Cl2Cl96g960.25000.42500.5750
N5N192h1920.55000.68000.2800

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 416 atoms drawn above are these sites multiplied by all 192 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

A5BCD6_cF416_228_eg_c_b_h-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF416, then the space-group number 228, then the Wyckoff letters occupied by each element in turn (Cu: 32b; Cr: 32c; Cl: 64e; Cl: 96g; N: 192h). 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 A5BCD6_cF416_228_eg_c_b_h-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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