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Ce₈Pd₂₄Sb

Cubic · space group Pm-3m (No. 221) · Pearson cP33

Symmetry elements and Wyckoff positions (interactive)

Ce₈Pd₂₄Sb in Pm-3m

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

Unit cell

Lattice constants
a = 8.461 Å, b = 8.461 Å, c = 8.461 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
605.7 ų
Atoms in the conventional cell
33 (Sb 1, Pd 24, Ce 8)
Formula units Z
1
Pearson symbol
cP33 — cubic, primitive lattice, 33 atoms per conventional cell
Symmetry operations
48 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Sb5Sb1a10.00000.00000.0000
Pd2Pd6e60.31120.00000.0000
Pd3Pd6f60.25550.50000.5000
Ce1Ce8g80.25140.25140.2514
Pd4Pd12h120.26670.50000.0000

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 33 atoms drawn above are these sites multiplied by all 48 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

A8B24C_cP33_221_g_efh_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cP33, then the space-group number 221, then the Wyckoff letters occupied by each element in turn (Sb: 1a; Pd: 6e; Pd: 6f; Ce: 8g; Pd: 12h). 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 A8B24C_cP33_221_g_efh_a-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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