Term: optical isomers [obsolete]
https://doi.org/10.1351/goldbook.O04308

Definition:
Obsolescent synonym for stereoisomers with different optical properties. They should be described as diastereoisomers or enantiomers. (Usage strongly discouraged).

Related Terms:
1) stereoisomers (http://doi.org/10.1351/goldbook.S05984).
2) diastereoisomers (http://doi.org/10.1351/goldbook.D01679).

Source: PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2212 (https://doi.org/10.1351/pac199668122193)

Citation: 'optical isomers <span class='text-danger'>[obsolete]</span>' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.O04308

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