Term: long-lived collision complex
https://doi.org/10.1351/goldbook.L03622

Definition:
When a potential-energy surface is such that the system performs a number of vibrations and rotations in the region of a col, the corresponding intermediate is known as a long-lived collision complex, and the reaction is said to be indirect.

Related Terms:
1) col (http://doi.org/10.1351/goldbook.C01145).
2) intermediate (http://doi.org/10.1351/goldbook.I03096).
3) collision complex (http://doi.org/10.1351/goldbook.C01160).

Source: PAC, 1981, 53, 753. 'Symbolism and Terminology in Chemical Kinetics' on page 767 (https://doi.org/10.1351/pac198153030753)

Citation: 'long-lived collision complex' 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.L03622

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