Symmetry Lab › Point groups › D4d
D4d point group
A C4 principal axis, 4 perpendicular C2 axes and 4 dihedral mirror planes that bisect them; the principal axis is also an S8 axis.
- Family
- Antiprismatic (Dₙd)
- Order
- 16
- Operations
- E, 2S₈, 2C₄, 2S₈³, C₂, 4C₂′, 4σd
- Molecules in the lab
- 3
D4d molecules
| Molecule | Shape | Atoms | 3D model |
|---|---|---|---|
| S₈Cyclo-octasulfur (crown) | Crown (puckered 8-ring) | 8 | Open in 3D → |
| [Os₂Cl₈]²⁻Octachlorodiosmate(III) ion | Two staggered OsCl₄ squares | 10 | Open in 3D → |
| [W(CN)₈]²⁻Octacyanotungstate(IV) ion | Square antiprism | 17 | Open in 3D → |