Term: diastereoisomeric units
https://doi.org/10.1351/goldbook.D01677

Definition:
Two non-superposable configurational units that correspond to the same constitutional unit are considered to be diastereomeric if they are not mirror images.

Related Terms:
1) configurational units (<em>in polymers</em>) (http://doi.org/10.1351/goldbook.C01255).
2) constitutional unit (<em>in polymers</em>) (http://doi.org/10.1351/goldbook.C01288).

Source: Purple Book, 1st ed., p. 27 (http://old.iupac.org/publications/books/author/metanomski.html)

Citation: 'diastereoisomeric units' 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.D01677

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