Crystal Lab › Prototype structures › Tetragonal
Cs₃CoCl₅ (K3₁)
Tetragonal · space group I4/mcm (No. 140) · Pearson tI36 · Strukturbericht K31
Symmetry elements and Wyckoff positions (interactive)
Cs₃CoCl₅ (K3₁) in I4/mcm
SettingUnit cell
- Lattice constants
- a = 9.063 Å, b = 9.063 Å, c = 14.450 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 1186.9 ų
- Atoms in the conventional cell
- 36 (Cs 12, Co 4, Cl 20)
- Formula units Z
- 4
- Pearson symbol
- tI36 — tetragonal, body-centred lattice, 36 atoms per conventional cell
- Symmetry operations
- 32 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Cs4 | Cs | 4a | 4 | 0.0000 | 0.0000 | 0.2500 |
| Co3 | Co | 4b | 4 | 0.0000 | 0.5000 | 0.2500 |
| Cl1 | Cl | 4c | 4 | 0.0000 | 0.0000 | 0.0000 |
| Cs5 | Cs | 8h | 8 | 0.6623 | 0.1623 | 0.0000 |
| Cl2 | Cl | 16l | 16 | 0.1421 | 0.6421 | 0.1571 |
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 36 atoms drawn above are these sites multiplied by all 32 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
A5BC3_tI36_140_cl_b_ah-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol tI36, then the space-group number 140, then the Wyckoff letters occupied by each element in turn (Cs: 4a; Co: 4b; Cl: 4c; Cs: 8h; Cl: 16l). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Other compounds with this structure
Ba₃CrO₅, Ba₃SiO₅, Ba₃TiS₅, Cl₃OLi₅, Cs₃CdBr₅, Cs₃CdD₅, Cs₃CoBr₅, Cs₃CoCl₅, Cs₃FeBr₅, Cs₃FeCl₅, Cs₃MgD₅, Cs₃MnBr₅, Cs₃MnD₅, Cs₃MnI₅, Cs₃NiCl₅, Cs₃ZnBr₅, Cs₃ZnCl₅, Cs₃ZnH₅, Eu₃AlO₅, K₃MnH₅, K₃ZnH₅, La₃CrN₅, La₃MnN₅, La₃MoN₅, Pb₃OCe₅, Pb₃OLa₅, Rb₃CoBr₅, Rb₃MgD₅, Rb₃MnD₅, Rb₃ZnH₅, Sr₃CO₅, Tl₃CoCl₅, Tl₃FeCl₅, Cs₃CoBr₅, Cs₃ZnH₅, Rb₃ZnH₅, Ba₃MO₅, (M = tetravalent metal), CsBa₅Ti₂Se₉Cl, (Sr_{3-x}A_{x})AlO₄F, (A = Ba, Ca), M₃Mg(BH₄)₅, (M = Rb, Cs) <!--beginning with an
Note: K3₁.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A5BC3_tI36_140_cl_b_ah-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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