Symmetry Lab › Point groups › D3h
D3h point group
A C3 principal axis, 3 perpendicular C2 axes and a horizontal mirror plane; these also give 3 vertical planes.
- Family
- Prismatic (Dₙₕ)
- Order
- 12
- Operations
- E, 2C₃, 3C₂, σh, 2S₃, 3σᵥ
- Molecules in the lab
- 22
D3h molecules
| Molecule | Shape | Atoms | 3D model |
|---|---|---|---|
| AlCl₃Aluminium chloride (monomer) | Trigonal planar | 4 | Open in 3D → |
| BH₃Borane | Trigonal planar | 4 | Open in 3D → |
| BBr₃Boron tribromide | Trigonal planar | 4 | Open in 3D → |
| BCl₃Boron trichloride | Trigonal planar | 4 | Open in 3D → |
| BF₃Boron trifluoride | Trigonal planar | 4 | Open in 3D → |
| CO₃²⁻Carbonate ion | Trigonal planar | 4 | Open in 3D → |
| GaCl₃Gallium trichloride (monomer) | Trigonal planar | 4 | Open in 3D → |
| CH₃⁺Methyl cation | Trigonal planar | 4 | Open in 3D → |
| NO₃⁻Nitrate ion | Trigonal planar | 4 | Open in 3D → |
| SO₃Sulfur trioxide | Trigonal planar | 4 | Open in 3D → |
| SbCl₅Antimony pentachloride | Trigonal bipyramidal | 6 | Open in 3D → |
| AsF₅Arsenic pentafluoride | Trigonal bipyramidal | 6 | Open in 3D → |
| C₃H₃⁺Cyclopropenyl cation | Planar three-membered ring | 6 | Open in 3D → |
| Fe(CO)₅Iron pentacarbonyl | Trigonal bipyramidal | 6 | Open in 3D → |
| PCl₅Phosphorus pentachloride (gas-phase molecule) | Trigonal bipyramidal | 6 | Open in 3D → |
| PF₅Phosphorus pentafluoride | Trigonal bipyramidal | 6 | Open in 3D → |
| C(CN)₃⁻Tricyanomethanide ion | Planar, three arms | 7 | Open in 3D → |
| C₂H₆ (eclipsed)Ethane, eclipsed | Eclipsed | 8 | Open in 3D → |
| C₃H₆Cyclopropane | Planar three-membered ring | 9 | Open in 3D → |
| [ReH₉]²⁻Nonahydridorhenate(VII) ion | Tricapped trigonal prism | 10 | Open in 3D → |
| B₃N₃H₆Borazine | Planar hexagonal ring | 12 | Open in 3D → |
| C₈H₁₄Bicyclo[2.2.2]octane | Two bridgeheads joined by three CH₂CH₂ bridges | 22 | Open in 3D → |