Crystal Lab › Prototype structures › Orthorhombic
Orthorhombic Fullerene (Cs₃C₆₀)
Orthorhombic · space group Immm (No. 71) · Pearson oI128
Symmetry elements and Wyckoff positions (interactive)
Orthorhombic Fullerene (Cs₃C₆₀) in Immm
SettingUnit cell
- Lattice constants
- a = 11.843 Å, b = 12.220 Å, c = 11.464 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 1659.1 ų
- Atoms in the conventional cell
- 128 (Cs 8, C 120)
- Formula units Z
- 8
- Pearson symbol
- oI128 — orthorhombic, body-centred lattice, 128 atoms per conventional cell
- Symmetry operations
- 16 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cs11 | Cs | 4e | 4 | 0.7080 | 0.0000 | 0.0000 |
| Cs10 | Cs | 4g | 4 | 0.0000 | 0.7490 | 0.0000 |
| C2 | C | 8l | 8 | 0.0000 | 0.7140 | 0.5630 |
| C1 | C | 8m | 8 | 0.6080 | 0.0000 | 0.8050 |
| C3 | C | 8n | 8 | 0.7950 | 0.4410 | 0.0000 |
| C4 | C | 16o | 16 | 0.5980 | 0.2500 | 0.1260 |
| C5 | C | 16o | 16 | 0.6220 | 0.4050 | 0.2660 |
| C6 | C | 16o | 16 | 0.7580 | 0.3820 | 0.1020 |
| C7 | C | 16o | 16 | 0.6970 | 0.2870 | 0.0630 |
| C8 | C | 16o | 16 | 0.5610 | 0.3090 | 0.2270 |
| C9 | C | 16o | 16 | 0.7200 | 0.4410 | 0.2030 |
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 128 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
A15B_oI128_71_lmn6o_eg-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oI128, then the space-group number 71, then the Wyckoff letters occupied by each element in turn (Cs: 4e; Cs: 4g; C: 8l; C: 8m; C: 8n; C: 16o; C: 16o; C: 16o; C: 16o; C: 16o; C: 16o). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: Orthorhombic Fullerene.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A15B_oI128_71_lmn6o_eg-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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