Anti-Aromatic, aromatic, non-aromatic compound

[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]

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.

[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]

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…………

[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

[Adplaya]

Cyclooctatetraene is ANIT-AROMATIC. 4n=8 n=2

[batruna]

thank you

you been helpful

[batruna]

thank you

you been helpfull

[derekmango81]

Girl needs a fat nut from me to get her English straight

[ironmen360]

Thanks for the info, I needed a refresher for the MCAT and your info helped jump start my brain again! Dont listen to the haters.

[Da3so8aa]

u suck

[Da3so8aa]

u suck i dont like the way u explain and ur accent is so annoying ... u mafde me hate organic damn

[rainnelegend]

I LOVE YOU! my professor makes this seem so hard!!!

[stardanny33]

Great vid, but I think the 8 membered ring becomes a boat because in a nonplanar conformation, it escapes from anti-aromaticity into non-aromaticity. This is very favorabl because anti-aromatic compounds are very unstable. The angle strain theory also sounds viable and because it's such a big molecule it can adopt the boat conformer. Smaller antiaromatic rings (3-6 atoms) are usually planar bc it's hard for them not to be planar.

[stardanny33]

Amikonjo- do u mean Prof Karen Phillips from Hunter??? She is an amazing professor.

[YdocReltuc]

thanks for this

[YourFormulaSheet]

@guiy16 sorry I haven't get time to go back to see what I said, but what you said here is correct.

[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 :)

[blanknblack]

THANK YOU SO MUCH

[amikonjo]

Thank you so much. You are a lot better than my boring Philips.

[Slashtap3]

thank you

[kmusic]

you make way more sense than my professor..THANK YOU!!! I understand it now..wooooooo

[kd438]

this was so helpful...thanks!

[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.

[bochevik]

This is very Good. Thanks. You should make more organic chemistry movies. You really made this simple to me. Bonus point for me on my test. another 98% on my test. thanks to you. ahhah

[jmw03j]

Very helpful thanks!

[heynejos]

i like it. however i had a hard time understanding your voice. move the microphone further from your mouth and use better diction.

thanks for the vid.

[tkp003]

Nice Video!!!!!!!!!!!!!

Could you do some mechanisms next time?!

[YourFormulaSheet]

Thank You for your comment!!!

If you have any mechanism in mind, please share with me.