OH + EtOH OH + MeOH Conclusions and Further Work

• Strong inverse temperature dependence at low temperatures observed for OH + EtOH and MeOH despite barrier to reaction. • Accelerated rate coefficients attributed to the increased role of quantum mechanical tunnelling at low temperatures. • Pressure dependence observed for OH + EtOH which is not seen at higher temperatures: indicating the stabilisation of a weakly bound complex between OH and EtOH. • Bimolecular plot curvature specific to OH + MeOH reaction at 150 K: more work will be undertaken to understand this behaviour. • Reactions of OH + EtOH at 60 K, OH + acetone at 150 K and OH + propanol will be studied in the near future. Introduction and Experimental Setup1 • The kinetics of OH + ethanol and methanol have been studied using a pulsed Laval nozzle apparatus (Figs. 2-3) at 60-150 K over a range of pressures. • The technique is based on the CRESU apparatus. [1,2] Room temperatur