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Mel B.

How many resonating structures of Carbon Monoxide are there?

Darryl Siemer  Follow

You have said it yourself. There are many possible resonance structures but most of them have a negligible contribution to the overall structure. Your proposed structure is one of them.

The major resonance contributors of carbon monoxide are: $$\ce{\!\overset{\ominus}{C}#\overset{\oplus}{O}\! ~<->~ \!C=O\! ~<->~\!\overset{\oplus}{C}-\overset{\ominus}{O}\!}$$

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John Davis TN-Chattanooga  Follow
The carbon atoms in the last two contributing canonical forms are not in octet condition. Isnt that a problem?More
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