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Enantiomers and diastereomers are both types of stereoisomers and optical isomers, and they are both are non-superimposable. While they share these similarities, enantiomers and diastereomers have important distinctions from one another, like their physical properties.
Are These Molecules Enantiomers, Diastereomers or The Same? A classic exam question is to determine whether two molecules are enantiomers, diastereomers or the same. This is important not only in the chapter on stereochemistry, but will also become important once you learn the reactions of alkenes.
What is their relationship? We have two chiral centers, and only one is changed, while the other one is the same. So, these molecules are not mirror images (in mirror images, everything is reflected, therefore changed). And this is what we call Diastereomers: Diastereomers are stereoisomers that are not mirror images of each other.
Enantiomers are a pair of molecules that exist in two forms that are mirror images of one another but cannot be superimposed one upon the other. Diastereomers are defined as compounds with the same molecular formula and sequence of bonded elements but are non-superimposable non-mirror images.
The main difference between enantiomers vs diastereomers is that enantiomers are found as mirror images whereas diastereomers are not. Enantiomers and diastereomers are two different types of stereoisomers.
Enantiomers and diastereomers are the only two stereochemical relationships that you can have between any two molecules. The stereoisomers are any two molecules that fulfill the following two requirements: Both molecules must have the same atom connectivity.
How to tell the difference between enantiomers and diastereomers.Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/stereochemistry...