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Monoclinic Averievite [(CsCl)Cu₅O₂(VO₄)₂]

Monoclinic · space group P121/c1 (No. 14) · Pearson mP40 · mineral: averievite

Symmetry elements and Wyckoff positions (interactive)

Monoclinic Averievite [(CsCl)Cu₅O₂(VO₄)₂] in P121/c1

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

Unit cell

Lattice constants
a = 8.373 Å, b = 6.367 Å, c = 11.013 Å; α = 90.00°, β = 90.02°, γ = 90.00°
Cell volume
587.1 ų
Atoms in the conventional cell
40 (Cl 2, Cu 10, Cs 4, O 20, V 4)
Formula units Z
2
Pearson symbol
mP40 — monoclinic, primitive lattice, 40 atoms per conventional cell
Symmetry operations
4 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Cl1Cl2a20.00000.00000.0000
Cu2Cu2c20.00000.00000.5000
Cs3Cs4e40.44980.00050.9998
Cu4Cu4e40.72930.50770.1664
Cu5Cu4e40.99990.77250.2390
O6O4e40.50070.51670.1685
O7O4e40.95070.50960.1637
O8O4e40.76260.69290.7441
O9O4e40.76270.22540.2498
O10O4e40.75450.00320.4751
V11V4e40.30500.50960.1669

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 40 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

AB2C5D10E2_mP40_14_a_e_c2e_5e_e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP40, then the space-group number 14, then the Wyckoff letters occupied by each element in turn (Cl: 2a; Cu: 2c; Cs: 4e; Cu: 4e; Cu: 4e; O: 4e; O: 4e; O: 4e; O: 4e; O: 4e; V: 4e). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: Averievite.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB2C5D10E2_mP40_14_a_e_c2e_5e_e-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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