aromatic q ..quick please answer

Started by Tina324
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Tina324

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cyclopropene= not aromatic because the carbon opposite the double bond is sp3?

cyclopropene with a positive charge opposite the double bond=aromatic because it is sp2 with an empty p orbital?
 
If an H- ion is removed from that third carbon then there will be an unoccupied p-orbital. For this reason, it is aromatic.
 
cyclopropene (non-aro due to sp3)
cyclopropene with a lone pair ( anti-aro)
cyclopropene with positive charge (non-aro)