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Shcherbinaite (D8₇, V₂O₅) Structure ( Obsolete ): A5B2_oP14_31_a2b_b-001

Orthorhombic · space group Pmn21 (No. 31) · Pearson oP14 · Strukturbericht D87 · mineral: shcherbinaite

Symmetry elements and Wyckoff positions (interactive)

Shcherbinaite (D8₇, V₂O₅) Structure ( Obsolete ): A5B2_oP14_31_a2b_b-001 in Pmn21

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

Unit cell

Lattice constants
a = 11.480 Å, b = 4.360 Å, c = 3.550 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
177.7 ų
Atoms in the conventional cell
14 (O 10, V 4)
Formula units Z
2
Pearson symbol
oP14 — orthorhombic, primitive lattice, 14 atoms per conventional cell
Symmetry operations
4 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
O1O2a20.00000.08000.8900
O2O4b40.14800.45000.9200
O3O4b40.20000.03000.4600
V4V4b40.14800.09700.0000

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 14 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

A5B2_oP14_31_a2b_b-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP14, then the space-group number 31, then the Wyckoff letters occupied by each element in turn (O: 2a; O: 4b; O: 4b; V: 4b). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: D8₇, Scherbinaite (Obsolete).

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A5B2_oP14_31_a2b_b-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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