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Crystal Lab › Prototype structures › Monoclinic

ε-1,2,3,4,5,6-Hexachloro cyclo hexane (C₆Cl₆)

Monoclinic · space group P121/c1 (No. 14) · Pearson mP24 · mineral: epsilon-1,2,3,4,5,6-Hexachloro cyclo hexane

Symmetry elements and Wyckoff positions (interactive)

ε-1,2,3,4,5,6-Hexachloro cyclo hexane (C₆Cl₆) in P121/c1

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

Unit cell

Lattice constants
a = 11.458 Å, b = 11.790 Å, c = 6.800 Å; α = 90.00°, β = 145.38°, γ = 90.00°
Cell volume
521.8 ų
Atoms in the conventional cell
24 (C 12, Cl 12)
Formula units Z
12
Pearson symbol
mP24 — monoclinic, primitive lattice, 24 atoms per conventional cell
Symmetry operations
4 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
C1C4e40.79400.01300.7890
C2C4e40.91100.11500.8160
C3C4e40.03500.04100.8580
Cl4Cl4e40.63100.92900.4190
Cl5Cl4e40.73000.18800.4180
Cl6Cl4e40.19000.13000.8920

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 24 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

AB_mP24_14_3e_3e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP24, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (C: 4e; C: 4e; C: 4e; Cl: 4e; Cl: 4e; Cl: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: \epsilon-Hexachloro{\em cyclo}hexane.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB_mP24_14_3e_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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