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Ni₄Mo (D1_{a})

Tetragonal · space group I4/m (No. 87) · Pearson tI10 · Strukturbericht D1a

Symmetry elements and Wyckoff positions (interactive)

Ni₄Mo (D1_{a}) in I4/m

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

Unit cell

Lattice constants
a = 5.720 Å, b = 5.720 Å, c = 3.564 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
116.6 ų
Atoms in the conventional cell
10 (Mo 2, Ni 8)
Formula units Z
2
Pearson symbol
tI10 — tetragonal, body-centred lattice, 10 atoms per conventional cell
Symmetry operations
16 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Mo1Mo2a20.00000.00000.0000
Ni2Ni8h80.40000.80000.0000

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 10 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

AB4_tI10_87_a_h-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tI10, then the space-group number 87, then the Wyckoff letters occupied by each element in turn (Mo: 2a; Ni: 8h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Ag₄Lu, Ag₄Sc, Au₄Cr, Au₄Er, Au₄Ho, Au₄Lu, Au₄Mn, Au₄Ti, Au₄V, Au₄Yb, Ni₄W <!--beginning with an

Note: D1_{a}.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB4_tI10_87_a_h-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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