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Topic: Aromaticity in Resonance structures  (Read 1556 times)

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Offline anay

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Aromaticity in Resonance structures
« on: January 20, 2018, 06:15:15 AM »
 c1-c(=o)-c=1>>c2-[c+]([-o])-c=2
(the single arrow shows resonance, I couldn't put a double arrow however I tried)
Hi,
I want to know if the compound on the right is a major contributor in the above resonance. I thought it is not, as carbon atom has an incomplete octet, but the answer given is yes, it is a major contributor. Some of my friends said it is because of Aromaticity in the ring, but I tried searching online and couldn't find anything saying that aromaticity in a resonance structure makes it a major contributor. So, I am asking here. How does Aromaticity help in significance of resonance structures? Any refrences/links with an explanation would be appreciated.
Thanks.

Offline sjb

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Re: Aromaticity in Resonance structures
« Reply #1 on: January 23, 2018, 05:59:05 AM »

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