13985 IUPAC Gold Book - threading component 10.1351/goldbook.13985 13985 current initialism: TC 1 Molecule with at least one linear section onto which at least one macrocyclic component is threaded. In the context of macromolecular rotaxanes, a threading component may be either a macromolecular chain with a linear section or a linear low-M molecule if a macromolecular component includes threadable ring(s). For a rotaxane, the word "linear" is to be interpreted broadly. The linear section of a threading component can be either an unbranched chain or a linear subchain of a branched chain or a network chain, or it can be a linear chain or subchain that includes small cyclic parts that do not prevent threading through a macrocyclic component. macrocyclic component https://goldbook.iupac.org//terms/view/13965 macromolecular rotaxanes https://goldbook.iupac.org//terms/view/13968 threadable ring(s) https://goldbook.iupac.org//terms/view/13984 PAC, 2012, 84, 2135. 'Terminology and nomenclature for macromolecular rotaxanes and pseudorotaxanes (IUPAC Recommendations 2012)' on page 2144 (https://doi.org/10.1351/PAC-REC-11-10-15) https://goldbook.iupac.org/terms/view/13985/html https://goldbook.iupac.org/terms/view/13985/json https://goldbook.iupac.org/terms/view/13985/plain Citation: 'threading component' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13985 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-05-09T16:51:26+00:00