Li₂₂Si₅

Unit cell

Lattice constants

a = 18.750 Å, b = 18.750 Å, c = 18.750 Å; α = 90.00°, β = 90.00°, γ = 90.00°

Cell volume

6591.8 ų

Atoms in the conventional cell

432 (Li 352, Si 80)

Formula units Z

16

Pearson symbol

cF432 — cubic, face-centred lattice, 432 atoms per conventional cell

Symmetry operations

48 per cell

Crystallographic sites

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 432 atoms drawn above are these sites multiplied by all 48 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

A22B5_cF432_196_abcd6efg4h_2efg-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF432, then the space-group number 196, then the Wyckoff letters occupied by each element in turn (Li: 4a; Li: 4b; Li: 4c; Li: 4d; Li: 16e; Li: 16e; Li: 16e; Li: 16e; Li: 16e; Li: 16e; Si: 16e; Si: 16e; Li: 24f; Si: 24f; Li: 24g; Si: 24g; Li: 48h; Li: 48h; Li: 48h; Li: 48h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Li₂₂Ge₅, Li₂₂Pb₅, Li₂₂Sn₅, Li₂₂Tl₅ <!--beginning with an

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A22B5_cF432_196_abcd6efg4h_2efg-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.