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Symmetry Lab › C2v › Cyclopentadiene

C₅H₆ Cyclopentadiene

Envelope-flat ring with one CH₂ · point group C2v · order 4

Open C₅H₆ in 3D →

Point group
C2v — A C2 rotation axis and 2 vertical mirror planes that contain it.
Order
4
Operations
E, C₂, σᵥ(xz), σᵥ′(yz)
Shape
Envelope-flat ring with one CH₂
Atoms
11 (C × 5, H × 6)

Symmetry elements of C₅H₆

  • C₂ — in the plane, through the C atom
  • σᵥ (xz) — the plane of the molecule
  • σᵥ′ (yz) — perpendicular to the molecule, through C

Structure

  • C=C 1.34 Å, C–C 1.47 Å
  • The CH₂ hydrogens stand above and below the ring
  • Loses H⁺ to give the aromatic C₅H₅⁻
Cyclopentadiene (C5H6) — C2v symmetry elements
Cyclopentadiene: symmetry elements of the C2v point group

Other C2v molecules

ClO₂Chlorine dioxideClO₂⁻Chlorite ionH₂SHydrogen sulfideNO₂⁻Nitrite ionNO₂Nitrogen dioxideOF₂Oxygen difluorideO₃OzoneSF₂Sulfur difluorideSO₂Sulfur dioxideH₂OWaterXeO₂Xenon dioxide (as an isolated molecule)BrF₃Bromine trifluoride

Open in the 3D lab →  ·  All C2v molecules  ·  All point groups