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Homework Help: Aromatic question

  1. Nov 20, 2008 #1
    Why is it that one of the C atoms of cyclopentadiene is sp3 hybridized? Because it's only involved in single bonds?

    Why is it then that cyclopentadienyl cation and anion don't contain sp3 hybridized anions?
  2. jcsd
  3. Nov 20, 2008 #2


    User Avatar

    Staff: Mentor

    I would try to think in terms of resonance structures.
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