Symmetry Lab › Point groups › D4h
D4h point group
A C4 principal axis, 4 perpendicular C2 axes and a horizontal mirror plane; these also give 4 vertical planes and a centre of inversion.
- Family
- Prismatic (Dₙₕ)
- Order
- 16
- Operations
- E, 2C₄, C₂, 2C₂′, 2C₂″, i, 2S₄, σh, 2σᵥ, 2σd
- Molecules in the lab
- 14
D4h molecules
| Molecule | Shape | Atoms | 3D model |
|---|---|---|---|
| [Pt(NH₃)₄]²⁺ (N atoms shown)Tetraammineplatinum(II) ion | Square planar | 5 | Open in 3D → |
| [AuCl₄]⁻Tetrachloroaurate(III) ion | Square planar | 5 | Open in 3D → |
| [ICl₄]⁻Tetrachloroiodate(III) ion | Square planar | 5 | Open in 3D → |
| [PdCl₄]²⁻Tetrachloropalladate(II) ion | Square planar | 5 | Open in 3D → |
| [PtCl₄]²⁻Tetrachloroplatinate(II) ion | Square planar | 5 | Open in 3D → |
| [BrF₄]⁻Tetrafluorobromate(III) ion | Square planar | 5 | Open in 3D → |
| XeF₄Xenon tetrafluoride | Square planar | 5 | Open in 3D → |
| trans-[CoCl₂(NH₃)₄]⁺trans-Tetraamminedichlorocobalt(III) (N atoms shown) | Octahedral, trans | 7 | Open in 3D → |
| C₄H₄²⁻Cyclobutadiene dianion (planar) | Planar 4-membered ring | 8 | Open in 3D → |
| [Ni(CN)₄]²⁻Tetracyanonickelate(II) ion | Square planar | 9 | Open in 3D → |
| [Pt(CN)₄]²⁻Tetracyanoplatinate(II) ion | Square planar | 9 | Open in 3D → |
| [Re₂Cl₈]²⁻Octachlorodirhenate(III) ion | Two eclipsed ReCl₄ squares | 10 | Open in 3D → |
| trans-[OsCl₂(CO)₄]trans-Dichlorotetracarbonylosmium(II) | Octahedral, two Cl trans | 11 | Open in 3D → |
| C₄H₈ (planar)Cyclobutane, planar form | Square ring (idealised planar) | 12 | Open in 3D → |