Drawing Resonance Structures in Organic Chemistry - Organic Chemistry Basics

In this video, you'll become an expert at identifying and drawing resonance structures for organic molecules.
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Samantha received her PhD in Organic Chemistry in 2015. She started Confident Chemistry in 2020 to give students a high quality, encouraging experience with online chemistry tutoring. With videos, downloads, mini courses and virtual consults, your confidence in organic chemistry is sure to grow!

[@JohnVKaravitis]

2:41 Clear and concise explanation of what resonance (electron delocalization) means. Resonance is NOT a process. It does NOT mean that the electron is flipping back and forth around the molecule. It means that the elextrons are spread out.

[@aseman8167]

thanks a lot ♥️😍 keep going!✌️

[@vix2740]

Is correct that resonance can only take place with sp2 hybridised atoms?

[@piotrklepinowski6478]

A very well prepared, beautiful lesson and delivery. Thank you for uploading this:)

[@ConfidentChemistry]

I'm glad you liked it!

[@CK-xk9vq]

I wish you had more videos! This is the first video on resonance I've seen that has really helped. You explained things so thoroughly, exactly what I have been needing!! Is there any way you would be able to make a video on organic acid/base reactions (using arrows to show electron flow)? Or anything with acid/base stuff in Ochem. I need someone like you to explain it!!

[@ConfidentChemistry]

I wish I had more videos too! Working on trying to make more, balancing with life and my kiddos 😊. Thanks for your kind words. I really believe that anyone can understand organic chemistry, you just need it explained the right way for you. That’s the beauty of KZbin, there are so many great options. I’m happy I get to be the one who helps a few people get it.

[@Jay-dl7rb]

This is my fourth video watching on KZbin on resonance structure and it is the first that actually made sense to me. Thank you soooooooo much.

[@ConfidentChemistry]

Yay! I'm so glad I was able to give you a clear explanation. That's my whole goal with this channel! :)

[@siddharthchauhan749]

15:42 this molecule will have only 4 resonance structure ?

[@ellahmariedabajo5737]

Thank you for this. You have such a warm vibe that eases up the tension of this course.

[@ConfidentChemistry]

Thank you, that's such a nice thing to say! :)

[@trilokchand336]

Thanks a lot . Myself Vikas from India🇮🇳🇮🇳

[@علي-ل2ك1ش]

Thank you for you❤❤❤

[@abdullahe3674]

much appreciated thank you so much oh yes that was well prepared :) and im sure it took some time bless you!!!!!

[@ramachandralegundapati-nq3wq]

What are possible resonance structures for 2,6 dichloro 1,4 benzoquinone?

[@siddhenmahajan9758]

thankyou, really appreciate the work

[@josec705]

Thank you very much for this video! You are a life saver

[@mitchmitchell305]

Wow …. U helped me . Big time ❤️

[@heathermoment]

AHHH THANK U QUEEN! i have my exam in the morning and was not feeling good about it. now i do:))

[@sarahstimson229]

I have an exam tomorrow too lmao

[@heathermoment]

@@sarahstimson229 good luck bestie pal:)

[@masudanasir1617]

I watched 3 different videos on resonance structures on KZbin and this is the best for me, thank you so much🙏🙏 keep it up💪💪

[@ConfidentChemistry]

Thanks so much, it means a lot!

[@HardWilly-o5f]

This was amazing! Thank you for providing educational content like this for free

[@ChandanSingh-py6cv]

Mam I am a chem major pls give some tips for 1uping my organic chem for the coming pharmacy school

[@siddharthchauhan749]

And if we have cl in place of nh2 15:42 then it will have 5 reso structure?

[@alderamin1402]

I think the last example should have 5 resonance structures

[@panaiworth6593]

Very helpful!! Thank you!!!

[@maxplank1196]

Please make the graphics a little bit larger so I can read them on my smartphone otherwise good narration

[@JopieKlep13]

Nice pace! thanks a lot, great work!

[@ConfidentChemistry]

Thanks so much!

[@Kartik-420]

It can be easily explain by p orbtial

[@kiannahmaecolipapa6948]

i love your video. i love your website. i love your free handouts. THANK YOU

[@ConfidentChemistry]

You're welcome! I'm so glad. I am slowly working on more :)

[@Kenzo_254]

I stumbled upon this video, and to say the least it was worth it... it's one of the best if not the best on resonance structures. Gracias

[@ConfidentChemistry]

Thank you so much, what a kind comment!

[@luisadolabella9216]

thank you so much!! I finally understood resonance and you’ve helped me with my test tomorrow!! Don’t stop with your videos please!! Brazil needs more teachers like you!

[@ConfidentChemistry]

I'm so glad! Thanks for the encouragement - a whole bunch more videos to come out this summer :) Wow, Brazil! I would love to go there one day!

[@AmanSingh-xu6ui]

Keep it up mam

[@kjpillay]

Really helpful video for what has been a very problematic section for me. Thank you so much.

[@alderamin1402]

Thank you

[@hellosarahxox]

Thank you sooo much! Will you be making any more videos? These are super helpful

[@ConfidentChemistry]

Thank you! They are in the works :)

[@OrcjaEnglish]

Resonance 1

[@kimyacininseyirdefteri8193]

❤

[@leelockie5513]

Thankyou soo much. you're lifesaver! :)

[@AbdulMajeed-zk9om]

Wow so clear! My professor should take notes lol

[@iaman8thinker652]

Thank u very much ...u made it simple 😊 for Me

[@g.davidtenenbaum8563]

On the last example of the aromatic ring, is it possible to draw resonance structures with the pi bond closest to the N moving to form a double bond to the N creating a negative charge on the N? Followed by the rest of the pi bonds in the ring moving one bond over creating positive charges ( with the understanding that positive charges on C are less desirable than negative charges on N)? If so, would these be considered insignificant?

[@ConfidentChemistry]

Hi David! Sorry I missed your comment. If you're asking what I think you're asking, the answer would be no, since the nitrogen already has 3 bonds and one lone pair, it can't accept an extra bond - this would violate its octet!

[@murulim8871]

Please make a video on how to draw energy level diagram

[@ConfidentChemistry]

Hopefully coming soon!

[@abbieorozco942]

Super helpful video! however at 5:18 confused why you drew in only two hyrdogens on the right, when its a methyl group with three hyrdogens?

[@destinyleblanc5112]

It should have three Hs - good eye, I saw that too. There should also be two hydrogens on the middle (second carbon).

[@ConfidentChemistry]

Hi! In the allyl cation, the carbon on the right as I drew it first has a positive formal charge. It is sp2 hybridized, so it has 3 bonds (one to a carbon, the other two to H’s) and then an empty p orbital. The left hand carbon is also sp2, but has four bonds (sigma and pi to other C, and two to H’s) and no formal charge. The middle carbon would have one implicit hydrogen, I didn’t draw it in. That carbon is also sp2 hybridized, with 2 sigma bonds to carbon atoms, one pi bond to the left hand carbon, and one bond to H (not shown). It is precisely because the right hand carbon is not a methyl group that resonance can happen! If it had 3 hydrogens, we would not be able to move the double bond over as this would give that carbon 5 bonds. Hope that is helpful!

[@timepass9491]

👍

[@EllenFroese]

Thanks for this!

[@ConfidentChemistry]

My pleasure!