aromatic q ..quick please answer

[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?

 

[UCfan]

If an H- ion is removed from that third carbon then there will be an unoccupied p-orbital. For this reason, it is aromatic.

 

[Tina324]

so cyclopropene with ALL of its H's...does NOT have a continuous pi system..correct?

 

[JBarr29]

because it will have sp3 carbon when no Hs are removed....makes it non aromatic

 

[keliao]

cyclopropene (non-aro due to sp3)
cyclopropene with a lone pair ( anti-aro)
cyclopropene with positive charge (non-aro)