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shabazz627 shabazz627
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6 years ago

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.
 
   

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6 years ago
The oxygen is sp2 hybridized. One lone pair is in a p orbital and is part of the pi system, along with one electron in the p orbital on each of the four carbon atoms. The other lone pair of the oxygen is in an sp2 orbital, which is in the plane of the ring and not involved in the pi system.
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