How do you tell diastereomers from enantiomers?

Answer 1

Stereoisomers are molecules with the same connections, but different orientations in space.

The chirality center is where the spatial orientation can change.

Enantiomers are non-superimposable mirror images, whereas diastereomers are non-superimposable non-mirror images.

The former can occur with one chirality center, whereas the latter can only generally occur with more than one chirality center.

As a consequence of the preceding, when a molecule has more than one chirality center, its "family" will include #2^n# stereoisomers, where #n# indicates the number of chirality centers.

Relationally, an enantiomer only has one other enantiomer, but could have dozens of diastereomers.

For instance, these are enantiomers,

and, these are diastereomers,

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Answer 2

Diastereomers have different configurations at some, but not all, chiral centers, resulting in distinct physical and chemical properties. Enantiomers are mirror images of each other and differ only in their stereochemistry. Therefore, diastereomers have different physical properties and can be separated by techniques like chromatography, while enantiomers have identical physical properties and cannot be separated by such methods.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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