Crystal Lab › Prototype structures › Orthorhombic
Room Temperature AgC₄N₃
Orthorhombic · space group Ima2 (No. 46) · Pearson oI32
Symmetry elements and Wyckoff positions (interactive)
Room Temperature AgC₄N₃ in Ima2
SettingUnit cell
- Lattice constants
- a = 7.970 Å, b = 10.190 Å, c = 6.210 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 504.3 ų
- Atoms in the conventional cell
- 32 (Ag 4, C 16, N 12)
- Formula units Z
- 4
- Pearson symbol
- oI32 — orthorhombic, body-centred lattice, 32 atoms per conventional cell
- Symmetry operations
- 8 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| Ag1 | Ag | 4b | 4 | 0.2500 | 0.1519 | 0.0000 |
| C2 | C | 4b | 4 | 0.2500 | 0.9430 | 0.3870 |
| C3 | C | 4b | 4 | 0.2500 | 0.8700 | 0.6040 |
| N5 | N | 4b | 4 | 0.2500 | 0.0070 | 0.2410 |
| C4 | C | 8c | 8 | 0.0940 | 0.6550 | 0.2040 |
| N6 | N | 8c | 8 | 0.9640 | 0.6860 | 0.2710 |
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 32 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
AB4C3_oI32_46_b_2bc_bc-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oI32, then the space-group number 46, then the Wyckoff letters occupied by each element in turn (Ag: 4b; C: 4b; C: 4b; N: 4b; C: 8c; N: 8c). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: Room Temperature.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB4C3_oI32_46_b_2bc_bc-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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