Term: random coil
https://doi.org/10.1351/goldbook.R05124

Definition:
The complete set of spatial arrangements of a chain molecule with a large number of segments that randomly change mutual orientation with time, under conditions in which it is free from external constraints that would affect its conformation. If the solution of the chain molecules is not in a theta state, the segments change mutual orientation only approximately randomly. Synonymous with statistical coil.

Related Terms:
1) conformation (http://doi.org/10.1351/goldbook.C01258).

Source: Purple Book, 1st ed., p. 50 (http://old.iupac.org/publications/books/author/metanomski.html)

Citation: 'random coil' 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.R05124

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