Title: Troe expression
Long Title: IUPAC Gold Book - Troe expression
DOI: 10.1351/goldbook.T06517
Status: current

Definition
A semiempirical description of the rate coefficient for a specific three body reaction [e.g. ] which represents well its pressure and temperature dependence in the region of transition between second and third order kinetics.

Related Term
- rate coefficient: https://goldbook.iupac.org//terms/view/R05137

Source
- PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2218 (https://doi.org/10.1351/pac199062112167)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/T06517/html
- json: https://goldbook.iupac.org/terms/view/T06517/json
- xml: https://goldbook.iupac.org/terms/view/T06517/xml

Citation: Citation: 'Troe expression' 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.T06517
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Accessed: 2026-06-20T09:24:58+00:00