Aromatic, Antiaromatic, or Nonaromatic Practice Session #3

This lesson examines multiple compounds to determine if they are aromatic, antiaromatic, or nonaromatic based on Huckel's Rule and other criteria.
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[@josephine4854]

I’m a medical student from France and I’m ready for my organic chemistry exam thanks to you 💪🏼, so thank you for saving me 😭

[@ChemComplete]

Hope the exam went well!

[@agustinfigueroa7096]

By far one of the best videos I have watched. Thank you so much!! My professor literally glanced over this section and gave us the hardest time with it. This video definitely without a doubt made it so easy.

[@ChemComplete]

You're very welcome!

[@poornaprince2410]

One of the best explanation. It's helps me in preparation of c competitive exams. Thank you so much

[@mayarayman2990]

Thanks a million.

[@saraz.4569]

Very helpful. Thanks!

[@jenniferlemus5104]

Hi, my name is Jenny and I am currently enrolled in organic chemistry. I find your videos very helpful but when taking an exam with my professor I stumbled upon something I though was non aromatic but the key said aromatic. This compound was Indane, could you further educate me why this is aromatic.

[@ChemComplete]

Jenny, this can be explained in the fact the 6 membered benzene ring can be viewed as aromatic and the secondary fused ring would be considered "a substituent" on the ring (in the same way toluene is aromatic with a CH3 substituent). However if looking at the entire molecule as a whole it would be non aromatic, as 5 membered ring lacks p-orbital overlap. In other words this can be viewed as a aromatic benzene ring with a side ring substituent (aromatic) or as a large nonaromatic structure.

[@jlemus08053]

@@ChemComplete THANK YOU!

[@alisharo58]

I’m trying to figure out if the compound phthalimide is aromatic or not. it’s harder to figure out aromaticity with fused rings.
I’m figuring that it’s antiaromatic (with 8 pi electrons). Could you confirm? Much appreciation!

[@quick-chemistry]

phthalimides in organic are aromatic heterocyclic compounds because some or all of the atoms in the heterocyclic molecules are joined in rings which contain the minimum of one element other than carbon.
Hope this helps!

[@abhayrajsingh4617]

Nice 👍👍👍🙏

[@KipronoBrian-5050]

How about 1,3,5,7 cyclooctatetraene,how does it not become planar?