Symmetry Lab › D5h › Ferrocene, eclipsed
Fe(C₅H₅)₂ (eclipsed) Ferrocene, eclipsed
Sandwich, eclipsed rings · point group D5h · order 20
- Point group
- D5h — A C5 principal axis, 5 perpendicular C2 axes and a horizontal mirror plane; these also give 5 vertical planes.
- Order
- 20
- Operations
- E, 2C₅, 2C₅², 5C₂, σh, 2S₅, 2S₅³, 5σᵥ
- Shape
- Sandwich, eclipsed rings
- Atoms
- 21 (Fe, C × 10, H × 10)
Symmetry elements of Fe(C₅H₅)₂ (eclipsed)
- C₅ — through the metal and both ring centres
- C₂ (1) — through the metal, perpendicular to the ring axis
- C₂ (2) — through the metal, perpendicular to the ring axis
- C₂ (3) — through the metal, perpendicular to the ring axis
- C₂ (4) — through the metal, perpendicular to the ring axis
- C₂ (5) — through the metal, perpendicular to the ring axis
- σh — through the metal, parallel to the rings
- S₅ — rotate 72°, then reflect in σh
- σᵥ (1) — contains the axis and one carbon of each ring
- σᵥ (2) — contains the axis and one carbon of each ring
- σᵥ (3) — contains the axis and one carbon of each ring
- σᵥ (4) — contains the axis and one carbon of each ring
- σᵥ (5) — contains the axis and one carbon of each ring
Structure
- Fe–C 2.06 Å, C–C 1.43 Å
- Ring–Fe–ring 180°
- The gas-phase ground state is eclipsed
