Evaluated kinetic and photochemical data for atmospheric chemistry: volume VIII – gas-phase reactions of organic species with four, or more, carbon atoms ( ? C<sub>4</sub>)

Abstract. This article, the eighth in series, presents kinetic and photochemical data sheets evaluated by IUPAC Task Group on Atmospheric Chemical Kinetic Data Evaluation. It covers gas-phase thermal reactions of organic species with four, or more, carbon atoms (? C4) available website 2021, including closed-shell HO NO3 radicals their photolysis. The present work is a continuation volume II (Atkinson et al., 2006), new updated for (77 reactions) (36 ? C4 organics, alkanes, alkenes, dienes, aromatics, oxygenated, nitrates nitro compounds addition to processes nine species. article consists summary table (Table 1), containing recommended parameters reactions, supplement sheets, which provide information upon recommendations are made.