Symmetry Lab › Point groups › Ih
Ih point group
The full symmetry of a regular icosahedron or dodecahedron: six C5 axes, ten C3 axes, fifteen C2 axes, a centre of inversion and fifteen mirror planes.
- Family
- Icosahedral (I, Iₕ)
- Order
- 120
- Operations
- E, 12C₅, 12C₅², 20C₃, 15C₂, i, 12S₁₀, 12S₁₀³, 20S₆, 15σ
- Molecules in the lab
- 3
Ih molecules
| Molecule | Shape | Atoms | 3D model |
|---|---|---|---|
| [B₁₂H₁₂]²⁻closo-Dodecaborate ion | Icosahedron of BH units | 24 | Open in 3D → |
| C₂₀H₂₀Dodecahedrane | Pentagonal dodecahedron | 40 | Open in 3D → |
| C₆₀Buckminsterfullerene | Truncated icosahedron | 60 | Open in 3D → |