Stereochemistry: Enantiomers

[@ProfessorDaveExplains]

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[@matthewbarnett3540]

for some reason I like the fact that you actually appear in the video instead of just your voice. it makes it easier to learn and i dont know why

[@NoviProleterijat]

I think it's easier to focus when you can watch someone

[@ximelp7268]

I agree. That's why sometimes I prefer him over Sal Khan from Khan Academy. I think that you being able to see all his expressions makes it easier to know what's more important, what concepts relate to each other and to keep you focused.

[@NicholasCat]

He looks like Jesus. Gives me hope for my grade

[@zairaalexisdulva8849]

And he's handsome

[@obaapapapabi3015]

@@NicholasCat you funny

[@trojanfire772]

this guy best explainer ever , he gets to the point and yet detailed but explains details in way 5 year old can understand and shows examples.. i appreciate u my good sir

[@michellechal4669]

please never stop making videos, they are way too helpful

[@XTheSpartanX7]

I love this, when he used the marker and said the Br is coming out at you and when you rotate 180 degrees the bromine is going into the page everything about chirality just clicked. Bless up homie

[@MsVickiticki]

Guess what, Dave (Professor Dave). Thanks to you I got the highest grade on my exam (we just got the results), and what's soo cool is that I'm the youngest in my class (studying at the university so some are 5-6 years older) and nobody got that grade but me, all thanks to you!

[@MsVickiticki]

actually, you don't have anything to do with the other grades, it's just that I'm so happy that you explained everything so good!

[@ProfessorDaveExplains]

woohoo! congratulations! happy to help.

[@MsVickiticki]

+Professor Dave Explains thank you!

[@stiphenregalario336]

wow hope i could do the same thing for my stereochem exam this coming saturday xd

[@mihaelalakic4573]

My professor at the university couldn't explain it to me for a whole year and you just did it in 7 minutes. King!

[@alienware2149]

you explain so "flawlessly" professor dave...appreciate!!!

[@thomasdang4860]

Thank you for visually explaining how enantiomers can't be superimposed! All other books/texts I referenced just said they were unsuperimposable, but never showed how like you did. I was confused... because my thinking was if I treated the image like a picture and just flipped it, it would superimpose, right? Thanks for showing me how it would work in 3-D space... makes complete sense now!

[@qojte]

thank u chemistry jesus

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Not funny

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It is funny

[@debebeseyoum7081]

@@firebloom02 ooow really I believe that u don't know nothing about jesus.. first try to understand k

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@@debebeseyoum7081 I see you get easily offended. How abt a 🤣 emoji at you face

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@@manikantan4809 ooow really... I m not easily offended but don't make the king compare with any one that's why I m being like this

[@ElizabethRey97]

You explain the stuff i think of and that no one somehow understands nor do I find them on youtube. Thank you

[@ProfessorDaveExplains]

+Elizabeth Rey it's my great pleasure! feel free to email with questions.

[@vrushabh.m5104]

Woow I FOUND IT SO DIFFICULT TO UNDERSTAND THESE ORGANIC CHEMISTRY CONCEPTS. THANK YOU PROFESSOR DAVE. YOU ARE THE BEST SCIENCE TEACHER I HAVE SEEN. THANK YOU.

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You are amazing!!!! Thank you for letting us use your videos for free because as students is hard to afford good explanations like yours!!!! you rock!!!!!!

[@MrBizarre6000]

8 whole years but this video is still helping lot's like me, absolutely genius...

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Nice explanation sir your handwriting is also nice.

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his excellent communications skills and knowledge of chemistry, is quite attractive, lol..

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Agree

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The Law of Attraction does come to mind here. -James.

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Niggas tryna smash the teacher. Bro read

[@eddtru]

I figured out in 3 mins of watching this, thank you Dave

[@ameliawhitehurst9139]

Thank you kindly for gifting your knowledge! These 7 minute gems accomplish what 3 hours of Orgo from my teacher cannot- but- she does deserve some credit for turning me on to you!

[@KingInferno93]

I am getting ready to teach a lot of organic students this concept and this video very beautifully visualized and conceptualized this topic. Very nice job Professor Dave :)

[@shamaaropunjabi7336]

I watched too many videos on YT to understand the concept but sir u are just amazinng!!!!

[@BharuRDMessi]

This thing called Isomerism had been a real pain in the ass for me....thank goodness you, the Chemistry Jesus, exist that I'm no longer pulling my hair over this thing, which once ruined organic chemistry in school for me!!! Much love Professor !

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What a legend, thank you. I'm going to watch all of your "organic chemistry" videoes :)

[@mindyourbusiness46]

Professor Dave! You are amazing. Please keep making more and more videos. No one can explain like you!

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I am earning as a chemistry teacher enough money by watching your videos. Big Thanks to you 😊

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Perfect, that's how a professor teach chemistry in easy language 💯💯

[@MarjohryEmmanuel]

My biochem proffesor did explain and I really never understood.. And this 12 mins I s a miracle. Thank you professor Dave

[@OrcjaEnglish]

You have explained very well . There were the basic concepts such as what's stereochemistry? What is chirality? What are structural isomers ? What is the stereogenic center? What are enantiomers? What do you mean by three dimensional way? It was a good lecture. Thank you ❤ You have given the nice examples to describe the super impossible or mirror images .

[@ellis8058]

Thank you professor, I was really struggling while studying for the exam and this helped me a lot and the good thing it’s not a long vid so it saved me so much time ❤

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Perfect teacher, i understood everything, I hope to pass my organic chemistry exam tomorrow

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I like these videos better, than the ones where you just read the prepared lessons.

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I cannot thank you enough for explaining organic chemistry!

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I am from Ethiopia.Prof you explain it clearly. Thanks !

[@MarcusAnthonyCornwallWilliams]

The intro alone was worth the like.

[@claritymurei2212]

Thanks Dave you're the best teacher ever

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The best professor for Biochemistry!

[@evenmehari3938]

thank you so much!!!!I had no clue when I first start seeing it!!! keep it up!!! I watch all your videos

[@emanturky9752]

best explainer ever

[@quanchess3659]

The key is just to pay attention to the wedges and dashes. Great explanation!

[@cassc5330]

Would not hate it if you did a video on acid hydrolysis of an ester.

[@karthikeyane7799]

If u can explain optical isomerism ... It would be so good I find it difficult to understand

[@minadehghani1831]

perfect :) I was going crazy as i couldn't understand it. but you helped me alot.

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Thank u sir, your explanations are quiet simple. And had given a strong concept.

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nice one professor... far more clear and better then my teacher...tankx

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he is better than my college's professor

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You save me🏋️. I will be taking my final exam for yr2 today and I have this module tonight! Thanks so much prof💯♥️👍🙏⬆️

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Really helpful! I had trouble understanding how that worked, but now I found it easier.

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Thank you so much! This really helped me with my chemistry test! ❤

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You are awesome, thank you for doing these videos.

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THIS video worked like magic..

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Thanks so much. This was helpful on my test!!

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quality science right here

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Just to let you know that I have been adding your videos to the Bibliography (APA format) in my O-Chem, Biochem and Anatomy reports :)

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I love you Professor David. You make chemistry looking easy!

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You are saving my life professor Thank you

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Thanks Professor, you made it so simple :)

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My GPA thanks you!

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Thank you so much Professor Dave!!!!!

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Thank you professor Dev

[@krishanchaudhary601]

Straightforward explanation. God bless.

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Waiting, for you to reach over 1M subscribers

[@Zetsuke4]

Perfect explanation

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Best explainer ever!!!!❤️❤️

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Thank you, Professor Dave!

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Super explanation ......

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You sir are a legend!!

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Appreciate!Very clear and flawless explanation!

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your explanatiom helped me to understand easily thank you Professor Dave

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just like you the video is so awesome

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So good at explaining! Thank you!

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So helpful!

[@Kayweezyfbabyy]

Thank you. You explained it very easily

[@shuaibsalim6616]

prof at 4:00 the molecule is not chiral, but if its mirror image is turned 180 degree the Br group will move behind and become wedge, wouldnt it be non superimposible now ?

[@ProfessorDaveExplains]

i'm not sure what you mean

[@hollow1235]

It doesn't superimpose but the first rule is that if we can cut the molecule in symmetrical halves in any plane so we don't need to check the next rules.

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Thank you Sir!

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God bless you. Ur knowledge was truly helpful.

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You are the best professor ever!!! Thank you ❤️

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Thank you so much, Prof. Dave!!! Long live!!!

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Thanks so much prof!

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Welldone ❤

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thank you so much i learned a lot :)

[@adityahardikar671]

Really Helpful!!!!

[@angela.5998]

My professor taught me that structures that only differ in bond (dash vs wedge) are the same molecules. At 5:05, you mentioned that the molecule with Bromine is an Enantiomer but the only difference is the Bromine changing from a dash bond to a wedge bond. Based what my professor said, wouldn't the two molecules just be identical? I don't mean to ask this in a condescending manner if its coming across that way. I truly am, just trying to understand the topic. Thanks!

[@ProfessorDaveExplains]

yikes, your prof is super wrong! enantiomers are definitely not the same molecule, ask anyone who took thalidomide in the 50s. enantiomers are the same structurally, and have identical values for certain physical properties like boiling point and things like that, but they are stereoisomers, they differ in their 3D shape.

[@angela.5998]

He used it in the context of structural isomers. I'm assuming those rules do not apply for stereoisomers.

[@ProfessorDaveExplains]

oh yes they are the same structurally in that all the connectivity is the same, but they differ in their spatial orientation, and to say that they are "the same molecule" is an egregious error!

[@angela.5998]

Thank you!!!

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Thank you🙌

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Thank you very much for making this video!!!

[@alattar4154]

Professor Dave, in that last example that had 2 F's, I understand that there is only 3 unique groups around instead of 4, which does not make it chiral. However, you said there is no way to rotate it so that its superimposable. Well, if you rotated 180 degrees, the OH will be dashed line instead of the triangle, and H was dashed but after the rotation of the mirror image, H is now sticking out with the solid triangle. This now looks different in 3D compared to the original. Am I wrong or is there a mistake here? Thank you prof you are a saviour!

[@ProfessorDaveExplains]

well sure, it's a different perspective, but it's still the same molecule, you just turned it. but the more important point is that because it's achiral, its mirror image will also be exactly the same molecule.

[@alattar4154]

Professor Dave Explains that is very true, it is like looking at it from the other side, it's still the molecule. I just realized that! Thanks a lot, and I especially appreciate the quick reply. You are the most underrated Orgo tutorial channel!

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Good work

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Every time he says methil group, baby blue start playing in my mind :D hahahha PS: Your channel is a gold mine for students, thanks

[@DapaChrons]

thanks as always mate

[@irfanmusiccafe5785]

well explained sir

[@currymuncher6821]

Hey man, great vid, was hoping you could clarify a few things for me. If a molecule has a chiral centre then it has two stereo isomers. Are those stereo isomers mirror images of each other, and hence enantiomers of each other?

[@currymuncher6821]

Thank you :)

[@ayaabuelkhair4608]

Thank you very much simple explanation