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Crystal Lab › Prototype structures › Monoclinic

γ-PdCl₂ Cl₂Pd

Monoclinic · space group P121/c1 (No. 14) · Pearson mP6

Symmetry elements and Wyckoff positions (interactive)

γ-PdCl₂ in P121/c1

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

Unit cell

Lattice constants
a = 5.550 Å, b = 3.861 Å, c = 6.410 Å; α = 90.00°, β = 107.15°, γ = 90.00°
Cell volume
131.2 ų
Atoms in the conventional cell
6 (Pd 2, Cl 4)
Formula units Z
2
Pearson symbol
mP6 — monoclinic, primitive lattice, 6 atoms per conventional cell
Symmetry operations
4 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Pd2Pd2a20.00000.00000.0000
Cl1Cl4e40.74500.75730.1859

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 6 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

A2B_mP6_14_e_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP6, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (Pd: 2a; Cl: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: \gamma-PdCl₂.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2B_mP6_14_e_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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