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Symmetry Lab4AB · ABC Chemistry

Symmetry Lab › Cs › Acetaldehyde

CH₃CHO Acetaldehyde

Planar C–C(=O)–H with a methyl · point group Cs · order 2

Open CH₃CHO in 3D →

Point group
Cs — A single mirror plane and nothing else.
Order
2
Operations
E, σ
Shape
Planar C–C(=O)–H with a methyl
Atoms
7 (C × 2, O, H × 4)

Symmetry elements of CH₃CHO

  • σ — the plane of the C–C(=O)–H skeleton

Structure

  • C=O 1.21 Å, C–C 1.50 Å
  • One methyl H eclipses the C=O bond
  • The molecular plane is the only mirror
Acetaldehyde (CH3CHO) — Cs symmetry elements
Acetaldehyde: symmetry elements of the Cs point group

Other Cs molecules

HOClHypochlorous acidNOClNitrosyl chlorideNH₂ClChloramineHNO₂ (trans)Nitrous acid, transSOCl₂Thionyl chlorideHCOOHFormic acidCH₂=CBrCl1-Bromo-1-chloroetheneCH₃OHMethanolCH₂=CHClVinyl chloride

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