Atmospheric chemistry of E-CF3CHCHCF3: Reaction kinetics of OH radicals and products of OH-initiated oxidation

Abstract The reaction rate coefficients for the E -CF 3 CH CHCF 3 with OH were measured using the relative rate method: k (298 K) = (1.10 ± 0.02) × 10 −13 and k (253–328 K) = (4.80 ± 0.92) × 10 −13 exp [−(445 ± 28)/ T ] cm 3  molecule −1  s −1 . The atmospheric lifetime was 105 d, and the radiative efficiency (RE) was 0.171 W m −2  ppb −1 . The estimated POCPs were evaluated as 0.8 and 0.3 under North-west European and USA urban conditions, respectively. The global warming potential was estimated as 7 for the global 100-year time horizon. CF 3 OOOCF 3 , CF 3 C(O)H, COF 2 , CO, and CO 2 were observed as carbon-containing products.