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anonymous

  • one year ago

Is this a resonance structure for Mellitic anhydride? https://en.wikipedia.org/wiki/Mellitic_anhydride

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  1. anonymous
    • one year ago
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    |dw:1438690030583:dw|

  2. anonymous
    • one year ago
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    I think yes. But you also need to consider O's lonley pair of electron, they participate in the risonance too.

  3. anonymous
    • one year ago
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    Yeah good point, each oxygen has one pair of electrons that will probably be more like in a pi orbital to help contribute to the stability. Something weird might have happened though it looks like we went from 18 pi electrons to only 15 pi electrons from this resonance so it went from a huckel number to not a huckel number unless I guess the oxygen are basically pi electrons.

  4. nincompoop
    • one year ago
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    looks pretty

  5. anonymous
    • one year ago
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    When I looked at this originally I thought these oxygen atoms were going to be more of an \(sp^2\) character, so that it would be conjugated with the rest of the molecule:|dw:1438706137179:dw| However counting up all the pi electrons while including these will raise the total number of pi electrons from 18 to 24 which is not a Huckel number. So maybe these don't behave like furan after all? I guess I'm still not sure, seems kinda fun though.