Aromaticity and It's Differences to Resonance
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Aromaticity and It's Differences to Resonance
Question: What is the difference between aromaticity and resonance?
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Re: What is the difference between aromaticity and resonance
Answer: Having resonance does not mean it is aromatic. To be aromatic, it must be a ring carbohydrate with conjugated pi bonds (and there must also be 4n+2 number of C in the same plane in the ring. These conjugated pi bonds have resonance.
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Re: Aromaticity and It's Differences to Resonance
Q: What does it mean when a molecule is aromatic? Is it when there's a consistent switch between double and single bonds in a cyclic molecule or can it be inconsistent (i.e. double bond, single, single, double, etc).
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Re: Aromaticity and It's Differences to Resonance
A: A "consistent switch between double and single bonds in a cyclic molecule" is correct. But remember you are thinking of the molecule as a Lewis structure. The real structure (e.g., benzene) will have identical bonds that are shorter than single bond but longer than a double bond (i.e., partial double bond character).
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