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Homework Help: Organic chem, resonance structure

  1. Jan 23, 2008 #1
    1. The problem statement, all variables and given/known data
    Are these two structures resonance?

    if not why not?

    res.jpg


    2. Relevant equations



    3. The attempt at a solution

    I drew these resonance forms myself, but the answer book didnt' have this resonance structure in its answer and i wanted to know if this indeed is a resonance form.

    I ask because one has total charge of -2 and other one is neutral
     
  2. jcsd
  3. Jan 24, 2008 #2

    chemisttree

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    No, they aren't resonance structures. The reason is:
    Resonance forms don't result in a net change of charge. That's a redox effect...
     
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