Crystal Lab › Prototype structures › Monoclinic
Rh₃S₄: A3B4_mC42_12_ahij_2i2j-001
Monoclinic · space group C12/m1 (No. 12) · Pearson mC42
Symmetry elements and Wyckoff positions (interactive)
Rh₃S₄: A3B4_mC42_12_ahij_2i2j-001 in C12/m1
SettingUnit cell
- Lattice constants
- a = 10.290 Å, b = 10.670 Å, c = 6.212 Å; α = 90.00°, β = 107.70°, γ = 90.00°
- Cell volume
- 649.8 ų
- Atoms in the conventional cell
- 42 (Rh 18, S 24)
- Formula units Z
- 6
- Pearson symbol
- mC42 — monoclinic, base-centred lattice, 42 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Rh1 | Rh | 2a | 2 | 0.0000 | 0.0000 | 0.0000 |
| Rh2 | Rh | 4h | 4 | 0.0000 | 0.1596 | 0.5000 |
| Rh3 | Rh | 4i | 4 | 0.6491 | 0.0000 | 0.4454 |
| S5 | S | 4i | 4 | 0.5835 | 0.0000 | 0.7709 |
| S6 | S | 4i | 4 | 0.8818 | 0.0000 | 0.6117 |
| Rh4 | Rh | 8j | 8 | 0.6372 | 0.1449 | 0.0499 |
| S7 | S | 8j | 8 | 0.3738 | 0.6582 | 0.1146 |
| S8 | S | 8j | 8 | 0.6507 | 0.2110 | 0.4010 |
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 42 atoms drawn above are these sites multiplied by all 8 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
A3B4_mC42_12_ahij_2i2j-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mC42, then the space-group number 12, then the Wyckoff letters occupied by each element in turn (Rh: 2a; Rh: 4h; Rh: 4i; S: 4i; S: 4i; Rh: 8j; S: 8j; S: 8j). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Rh₃Se₄ <!--beginning with an
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A3B4_mC42_12_ahij_2i2j-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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