enantiomer is one of two stereoisomers that are mirror images of each other that are non-superposable, as one’s left and right hands are mirror images of each other that cannot appear identical simply by the reorientation. on the other hand, Diastereomers are a type of stereoisomer that are non-mirror image non-identical stereoisomers. they occur when two stereoisomers of a compound have different configurations at one or more of the equivalent stereocenters and are not mirror images of each other. the main difference Between Enantiomers And Diastereomers is that Enantiomers are stereoisomers that are non-superimposable mirror images and they are always in the form of pairs. they have identical physical properties except to rotate planer-polarization light. whereas Diastereomers are stereoisomers that are non-superimposable and they do not mirror images. Diastereomers have distinct physical properties.
Difference Between Enantiomers And Diastereomers in tabular Form
|they are known as stereoisomers which means they are mirror images of each other.||they are not stereoisomers or mirror images of each other.|
|they are also non-superimposable mirror images of each other||they are non-superimposable mirror images of each other but not mirror images of each other.|
|Enantiomers possess identical properties but cannot rotate through plane-polarised light||Diastereomers possess Distinct physical properties than Enantiomers.|
|all lists of enantiomers have the same physical and chemical properties but they cannot interact with chiral compounds.||all list of enantiomers has distinct physical and chemical properties|
|they are present in pairs.||they are present in the shape of several molecules.|
|have a minimum of one or more stereocenters.||have a minimum of two or more stereocenters.|
|their molecular shape is similar in all manners.||their molecular shape is different in all manners.|
|they can pass optical activity having opposite but equal angles of rotation.||few Diastereomers can pass optical activity and also have not an equal angle of rotation.|
|they possess always a different R, S-configuration.||they always possess similar R, S-configuration at least at one stereocenter.|
|crystallization, chromatography, etc. techniques are used to separate them.||fractional distillation, chromatography, etc techniques are used to separate them.|
|Lactic acid is a good example of Enantiomers||Tartaric acid is a good example of Diastereomers|
What are Enantiomers?
Enantiomers are derived from the Greek language that has a meaning of pair of stereoisomers. they are mirror reflections of each other. the right and left palms are two enantiomers having the same structure and different spatial orientations. they cannot combine in space.
they formed only due to the presence of molecules in chiral but the properties do not coincide in the space with mirror images.
What are Diastereomers?
diastereoisomers are also derived from the Greek language. they are spatial isomers with several asymmetric centers. in these spatial isomers, asymmetric atoms are configured coincidently and are opposite parts. If there are several chiral atoms in the compound, the formula 2n will give us the number of stereoisomers. where n represents the number of chiral centers. These stereoisomers form 2n-1 diastereomeric pairs of enantiomers.
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