Symmetry Lab › D6 › Bis(benzene)chromium, twisted by 15°
Cr(C₆H₆)₂ (twisted) Bis(benzene)chromium, twisted by 15°
Sandwich, rings twisted by 15° · point group D6 · order 12
- Point group
- D6 — A C6 principal axis and 6 C2 axes perpendicular to it, with no mirror plane. Molecules in this group are chiral.
- Order
- 12
- Operations
- E, 5C6, 6C₂ (rotations only)
- Shape
- Sandwich, rings twisted by 15°
- Atoms
- 25 (Cr, C × 12, H × 12)
Symmetry elements of Cr(C₆H₆)₂ (twisted)
- C₆ — the main axis
- C₂ (1) — perpendicular to the ring axis, halfway between the two rings’ atoms
- C₂ (2) — perpendicular to the ring axis, halfway between the two rings’ atoms
- C₂ (3) — perpendicular to the ring axis, halfway between the two rings’ atoms
- C₂ (4) — perpendicular to the ring axis, halfway between the two rings’ atoms
- C₂ (5) — perpendicular to the ring axis, halfway between the two rings’ atoms
- C₂ (6) — perpendicular to the ring axis, halfway between the two rings’ atoms
Structure
- Cr–C 2.15 Å
- Rings turned 15°
- Only rotations survive: D6
