Title: collinear reaction
Long Title: IUPAC Gold Book - collinear reaction
DOI: 10.1351/goldbook.C01156
Status: current

Definition
This is a reaction assumed to occur via an activated complex in which all of the atoms directly involved in the process lie along a straight line.

Related Term
- activated complex: https://goldbook.iupac.org/terms/view/A00092

Source
- PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 158 (https://doi.org/10.1351/pac199668010149)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C01156/html
- json: https://goldbook.iupac.org/terms/view/C01156/json
- xml: https://goldbook.iupac.org/terms/view/C01156/xml

Citation: Citation: 'collinear reaction' 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.C01156
License: 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.
Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .
Disclaimer: 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.
Accessed: 2026-08-10T14:35:10+00:00