Enantiomers are defined within stereochemistry as stereoisomers possessing identical chemical formulas but non-superimposable mirror-image spatial arrangements, a relationship strictly dependent on the presence of at least one chiral center. The core theoretical mechanism dictates that while enantiomeric pairs always exhibit opposite absolute configurations (R/S) according to Cahn-Ingold-Prelog priority rules, molecules containing two or more chiral centers can form diastereomers if only a subset of these centers are inverted, distinguishing them from true enantiomers. Furthermore, the theory establishes that specific structural symmetry conditions must be met; otherwise, compounds with multiple stereocenters may exist as meso forms rather than exhibiting the distinct properties of an enantiomeric pair.
Enantiomers are defined within stereochemistry as stereoisomers possessing identical chemical formulas but non-superimposable mirror-image spatial arrangements, a relationship strictly dependent on t…