Skip to main content
Chemistry LibreTexts

Unsymmetrical Alkene

  • Page ID
    43015
  • An unsymmetrical alkene is an alkene in whose molecule the pair of ligands on one doubly bonded carbon is different from that on the other.

    eg. 1:

    In 1, one doubly bonded carbon bears two methyl groups and the other a methyl group and a hydrogen atom. Thus, 1 is an unsymmetrical alkene.

    eg. 2:

    In 2, one doubly bonded carbon bears two methyl groups and the other a methyl group and an ethyl group. Thus, 2 is an unsymmetrical alkene.

    eg. 3:

    In 3, one doubly bonded carbon bears a methyl group and a hydrogen atom and the other an ethyl group and a propyl group. Thus, 3 is an unsymmetrical alkene.

    In an organic molecule, a carbon-carbon double bond in which the carbon atoms bear different pairs of ligands is called an unsymmetrical double bond.

    eg:

    see also symmetrical alkene