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What Are Enantiomers and Diastereomers?
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- Опубликовано: 14 авг 2024
- In this video I'll go over the fundamental difference between the enantiomers and diastereomers, how to rotate molecules in space, and how to make mirror reflections. I'll also discuss the common misconceptions surrounding this topic.
00:00 Enantiomers and Diastereomers
02:54 Drawing Mirror Reflections
07:31 How to Perform Molecular Rotations
10:34 Common Misconceptions About Enantiomers and Diastereomers
13:46 Why Do We Even Care?
#organicchemistry #organicchemistrytutor #stereochemistry #enantiomers #diastereomers
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ive been binge watching a ton of your videos for my ochem exam that's in 10 hrs. You have helped me so much! Thank you!!!
Best of luck on the test! You can do it! 💪
Did you get it?
Thank you Victor. Your channel will definitely grow if u keep going
Thank you! I hope so 😅
But if they dont have chiral atom how are optically acive and stereomers?
Review the definitions and watch the "common misconceptions" portion again.
Hi what is R ans S thing you are talking about?
Stereodescriptors. I have a tutorial on that too.
Thanks Victor! That was a great lesson. Well, actually I learned some new molecular rotation descriptors: the steering wheel, the sheesh kebab, and the single ladies!
But seriously, I remember on a standardized test, I got caught with a question that asked whether 2 non-chiral molecules were enantiomers :(
These questions are such a fertile ground for traps! Definitions are very similar and you can always plant a ton of tricks in the molecules themselves. Things like “fake” stereocenters (meaningless dashes and wedges), using multiple representations, mixing up multiple terms in the same question, sigh, the list is endless.
@@VictortheOrganicChemistryTutor Definitely. Like you said in the other video, anyone wanting to do well in O-chem needs many hours of studying and practice.
Hi, thanks a lot for the great vid! Quick question, in 7:05 why do we assign the R-stereodescriptor to the C-Atom that's connected to the hydroxy group? Thanks!
Just follow the CIP rules. Remember, that if your lowest priority is not looking away from you, you'll have to rotate the molecule around. I've got a vide on that too, just dig through the older videos or click on the playlist in the description. I also have a thorough description of how to deal with the CIP rules and the R/S stereodescriptos up on the website.
I think I figured it out: so the hydrogen-atom that is drawn with a wedge, needs to be drawn next to the dashed hydroxy-group. I didn't know that. Victor, am I right in saying that dashed and wedges are next to each other always when they are on the same atom?@@VictortheOrganicChemistryTutor
@@nachhilfeerfolg969 It is a good practice to have your dashes and wedges on the same side of the molecule. Otherwise, it becomes ambiguous. I talk about it in one of my videos on stereochemistry, but I should probably make a dedicated one instead as it's a common mistake.