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Crystal Lab › Prototype structures › Orthorhombic

W₃O₁₀ (WO₃ cdot frac13H₂O)

Orthorhombic · space group Fmm2 (No. 42) · Pearson oF52

Symmetry elements and Wyckoff positions (interactive)

W₃O₁₀ (WO₃ cdot frac13H₂O) in Fmm2

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

Unit cell

Lattice constants
a = 7.449 Å, b = 12.667 Å, c = 7.799 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
735.9 ų
Atoms in the conventional cell
52 (O 40, W 12)
Formula units Z
4
Pearson symbol
oF52 — orthorhombic, face-centred lattice, 52 atoms per conventional cell
Symmetry operations
16 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
O1O4a40.00000.00000.7600
O2O4a40.00000.00000.2700
W6W4a40.00000.00000.0000
O3O8b80.25000.25000.3100
W7W8b80.25000.25000.0600
O4O8c80.00000.29000.1000
O5O16e160.17000.11000.0700

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 52 atoms drawn above are these sites multiplied by all 16 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

A10B3_oF52_42_2abce_ab-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oF52, then the space-group number 42, then the Wyckoff letters occupied by each element in turn (O: 4a; O: 4a; W: 4a; O: 8b; W: 8b; O: 8c; O: 16e). 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 A10B3_oF52_42_2abce_ab-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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