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Crystal Lab › Prototype structures › Tetragonal

Mo₂FeB₂

Tetragonal · space group P4/mbm (No. 127) · Pearson tP10

Symmetry elements and Wyckoff positions (interactive)

Mo₂FeB₂ in P4/mbm

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

Unit cell

Lattice constants
a = 5.782 Å, b = 5.782 Å, c = 3.148 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
105.2 ų
Atoms in the conventional cell
10 (Fe 2, B 4, Mo 4)
Formula units Z
2
Pearson symbol
tP10 — tetragonal, primitive lattice, 10 atoms per conventional cell
Symmetry operations
16 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Fe2Fe2a20.00000.00000.0000
B1B4g40.39400.89400.0000
Mo3Mo4h40.18300.68300.5000

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

A2BC2_tP10_127_g_a_h-002: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tP10, then the space-group number 127, then the Wyckoff letters occupied by each element in turn (Fe: 2a; B: 4g; Mo: 4h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Al₂CrB₂, Al₂FeB₂, Al₂NiB₂, Ce₂InPd₂, Dy₂CdPd₂, Dy₂InPd₂, Er₂CdPd₂, Er₂InPd₂, Gd₂CdPd₂, Gd₂InPd₂, Ho₂CdPd₂, Ho₂InNi₂, Ho₂InPd₂, La₂InCu₂, La₂InPd₂, Lu₂CdPd₂, Lu₂InPd₂, Mo₂CrB₂, Mo₂NiB₂, Nb₂FeB₂, Nd₂InPd₂, Ni₂SnZr₂, Pr₂CdPd₂, Pr₂InPd₂, Sm₂CdPd₂, Sm₂InPd₂, Ta₂FeB₂, Tb₂CdPd₂, Tb₂InPd₂, Th₂InPd₂, Ti₂CrB₂, Ti₂FeB₂, Ti₂NiB₂, Tm₂CdPd₂, Tm₂InCu₂, Tm₂InPd₂, U₂PbRh₂, Yb₂PbPt₂ <!--beginning with an

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2BC2_tP10_127_g_a_h-002 (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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