The kinetics of hydrogen abstraction by difluoroamino-radicals, from propionaldehyde, and n- and iso-butyraldehyde, and their acyl radical decompositions

The kinetics of the aldehydic hydrogen abstraction by difluoroamino-radicals have been studied between 100 and 175 °C for propionaldehyde and between 80 and 150 °C for n- and iso-butyraldehyde. The following Arrhenius parameters were found: [graphic omitted] The kinetics and pressure-dependence of the decompositions of the resulting acyl radicals have been studied. The limiting high-pressure rate constants for the acyl radical decompositions have been obtained by extrapolation. [graphic omitted] The Arrhenius parameters for the acyl radical attacks on difluoroamine and for the acyl radical formations have been calculated from themodynamic data.