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Crystal Lab › Prototype structures › Trigonal

NaSbF₄(OH)₂ (J1₁₂)

Trigonal · space group P-31c (No. 163) · Pearson hP16 · Strukturbericht J112

Symmetry elements and Wyckoff positions (interactive)

NaSbF₄(OH)₂ (J1₁₂) in P-31c

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

Unit cell

Lattice constants
a = 5.227 Å, b = 5.227 Å, c = 9.980 Å; α = 90.00°, β = 90.00°, γ = 120.00°
Cell volume
236.1 ų
Atoms in the conventional cell
16 (Na 2, Sb 2, F 12)
Formula units Z
2
Pearson symbol
hP16 — hexagonal / trigonal, primitive lattice, 16 atoms per conventional cell
Symmetry operations
12 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Na2Na2b20.00000.00000.0000
Sb3Sb2c20.33330.66670.2500
F1F12i120.33000.33000.1500

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 16 atoms drawn above are these sites multiplied by all 12 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

A6BC_hP16_163_i_b_c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol hP16, then the space-group number 163, then the Wyckoff letters occupied by each element in turn (Na: 2b; Sb: 2c; F: 12i). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: J1₁₂.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6BC_hP16_163_i_b_c-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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