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MgB₁₂H₁₂[H₂O]₁₂ B₁₂H₃₆MgO₁₂
Cubic · space group F4132 (No. 210) · Pearson cF488
Symmetry elements and Wyckoff positions (interactive)
MgB₁₂H₁₂[H₂O]₁₂ in F4132
SettingUnit cell
- Lattice constants
- a = 16.432 Å, b = 16.432 Å, c = 16.432 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 4436.9 ų
- Atoms in the conventional cell
- 488 (Mg 8, O 96, B 96, H 288)
- Formula units Z
- 8
- Pearson symbol
- cF488 — cubic, face-centred lattice, 488 atoms per conventional cell
- Symmetry operations
- 96 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Mg5 | Mg | 8a | 8 | 0.0000 | 0.0000 | 0.0000 |
| O6 | O | 48f | 48 | 0.1254 | 0.0000 | 0.0000 |
| O7 | O | 48g | 48 | 0.1250 | 0.5138 | 0.7362 |
| B1 | B | 96h | 96 | 0.4116 | 0.5002 | 0.4458 |
| H2 | H | 96h | 96 | 0.3557 | 0.4992 | 0.4100 |
| H3 | H | 96h | 96 | 0.1708 | 0.5123 | 0.5411 |
| H4 | H | 96h | 96 | 0.5888 | 0.5347 | 0.2125 |
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 488 atoms drawn above are these sites multiplied by all 96 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
A12B36CD12_cF488_210_h_3h_a_fg-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF488, then the space-group number 210, then the Wyckoff letters occupied by each element in turn (Mg: 8a; O: 48f; O: 48g; B: 96h; H: 96h; H: 96h; H: 96h). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
NiB₁₂H₁₂[H₂O]₁₂ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A12B36CD12_cF488_210_h_3h_a_fg-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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