Anti-Aromatic, aromatic, non-aromatic compound

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[JennyFarlopez]

Rules 2 and 3 are actually the same.

[YourFormulaSheet]

@JennyFarlopez Yes, they are the same. lol... some of my people don't know they are the same ... so I thought to make them as a rule. =p

[newsftw]

If i'm not wrong, the N in pyrrole should be sp2 not sp3. It's sp2 hybridized holding two pi electrons in the p orbital which can be delocalized and hence complete the sextet of electrons required for aromaticity..

[YourFormulaSheet]

@newsftw did I say sp3? Yeah, it is sp2. Most people count sp3. If I did say sp3 then I am one of them, too. lol :)

[fh1mahfanzai]

so angles bigger than 120 degrees will be too large for p orbital to overlap? so that would make cyclooctatetraene not planar? but what about cyclononatetraenyl cation?

awesome vid and web. Luving it :D

[YourFormulaSheet]

Cyclooctatetrene has 135 degree on each p and we learn p orbital is more stable in 120 degree - it is not favorible to retain a planar structure. For Cyclononatetraenyl cation, it is planar.

[lalittiwari35]

Dear adplaya, cyclooctatetraene is not planar,so if u have already brocken rule 3,u cant use rules of 4n and 4n+2 pie e- aftrwards.

[gamgee]

SO AWESOME. thank you!

[rawanghannam]

Thanks! Soooo helpful :)

[jb007zf]

3:00 lol!

[pathumweerawarna]

As you say it is basic and lone pair is in the sp2 hybridized orbital. Another thing I must say that, this 4n+2 and 4n rule is only applicable for the huckle system… There is another system called mobius system… In these systems, this rule is reversed…

However, your channel is great…………

[pathumweerawarna]

Lone pair in the nitrogen atom is in p orbital…so there are 6 pi electrons (4n+2). So pyrrole is aromatic….If you have time, please go through a standard organic chemistry text book….In all text books, you can find that pyrrole is being considered as a aromatic compound… Also you can understand this, if you try to write resonance structures for this compound. Pyridine compound is aromatic and you are correct at that point.

[pathumweerawarna]

Dear sister,

Your channel is fantastic….You have done a great job…..keep it up……….Anyway I noticed several mistakes in this video……Nitrogen atom of the pyrrole molecule you are showing is not sp3 hybridized… It is sp2 hybridized….lone pair is on the p orbital. Other carbon atoms are also sp2 hybridized and in every atom, there is a side to side overlapping p orbital. So that means, the system is fully conjugated.

[baughbsandersguy]

Hey this is great!! thank you! i love your soothing voice haha it makes chemistry pleasant.

[nathaliefern]

This helped a lot!

[theromeprincess]

AWESOME. thanks