Crystal Lab › AB structures
Zinc blende (sphalerite) ZnS
AB, 4:4 (ccp) · space group F-43m (No. 216) · Z = 4
Unit cell
- Lattice constants
- a = 5.410 Å, b = 5.410 Å, c = 5.410 Å; α = 90°, β = 90°, γ = 90°
- Cell volume
- 158.3 ų
- Atoms in the cell
- 8 (Zn 4, S 4)
- Formula units Z
- 4
- Calculated density
- 4.09 g cm⁻³
- Shortest contact
- 2.343 Å
Coordination
- Zn
- CN 4 at 2.34 Å (4 S)
- S
- CN 4 at 2.34 Å (4 Zn)
About the structure
- ccp array of S²⁻ with Zn²⁺ in half of the tetrahedral holes (4 of 8 per cell).
- Coordination 4:4; the diamond framework with alternating atoms.
- GaAs, InP, CdTe, CuCl and the III–V semiconductors share this structure.
Atom positions (fractional, one cell)
| Atom | x | y | z |
|---|---|---|---|
| Zn | 0.0000 | 0.0000 | 0.0000 |
| Zn | 0.0000 | 0.5000 | 0.5000 |
| Zn | 0.5000 | 0.0000 | 0.5000 |
| Zn | 0.5000 | 0.5000 | 0.0000 |
| S | 0.2500 | 0.2500 | 0.2500 |
| S | 0.2500 | 0.7500 | 0.7500 |
| S | 0.7500 | 0.2500 | 0.7500 |
| S | 0.7500 | 0.7500 | 0.2500 |
Z, coordination numbers, distances, density and packing on this page are computed from these coordinates.
Other ab structures
Caesium chlorideCsCl · AB, 8:8Rock salt (halite)NaCl · AB, 6:6Nickel arsenideNiAs · AB, 6:6 (hcp)WurtziteZnS · AB, 4:4 (hcp)
Open Zinc blende (sphalerite) in the 3D viewer → · All structures