F2 + CF3I Dark Reaction. 1. Stoichiometry and Pressure-Dependent Kinetics

Article abstract of DOI:10.1021/j100185a028

The reaction between F2 and CF3I has been investigated over a wide range of pressures and flow velocities at 298 K.An induction time precedes a period of CF3I consumption which is well characterized by an exponential decrease in concentration over time.The CF3I disappearance rate as well as the induction time are dependent upon the concentration of the initial species, indicating that a chain reaction is responsible.CF3I and F2 react to give IF5, C2F6, and CF4 as end products (where the principal carbon-containing end product is CF4), suggesting that both IF and CF3 play an important role in the kinetics of the reaction.The apparent discrepancies of the previous studies of this reaction are shown to be related to experimental conditions.