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Crystal Lab › Prototype structures › Hexagonal

GaSeCl₅O

Hexagonal · space group P61 (No. 169) · Pearson hP48

Symmetry elements and Wyckoff positions (interactive)

GaSeCl₅O in P61

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

Unit cell

Lattice constants
a = 6.563 Å, b = 6.563 Å, c = 33.628 Å; α = 90.00°, β = 90.00°, γ = 120.00°
Cell volume
1254.5 ų
Atoms in the conventional cell
48 (Cl 30, Ga 6, O 6, Se 6)
Formula units Z
6
Pearson symbol
hP48 — hexagonal / trigonal, primitive lattice, 48 atoms per conventional cell
Symmetry operations
6 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Cl1Cl6a60.50530.21240.0443
Cl2Cl6a60.21050.50970.0825
Cl3Cl6a60.89050.88460.0603
Cl4Cl6a60.61670.98900.1453
Cl5Cl6a60.72810.52120.1423
Ga6Ga6a60.21500.18630.0781
O7O6a60.24300.10830.1319
Se8Se6a60.45870.18970.1645

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 48 atoms drawn above are these sites multiplied by all 6 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

A5BCD_hP48_169_5a_a_a_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol hP48, then the space-group number 169, then the Wyckoff letters occupied by each element in turn (Cl: 6a; Cl: 6a; Cl: 6a; Cl: 6a; Cl: 6a; Ga: 6a; O: 6a; Se: 6a). 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 A5BCD_hP48_169_5a_a_a_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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