Kinetics of Reactions of Halogenated Methyl Radicals with Hydrogen Iodide

Article abstract of DOI:10.1021/j100162a036

The kinetics of the reactions of CH2I, CH2Br, CH2Cl, and CHCl2 with HI were studied in a tubular reactor coupled to a photoionization mass spectrometer.Rate constants were measured as a function of temperature (typically between 294 and 552 K) to determine Arrhenius parameters.For these and other R + HI reactions studied to date (i.e., those involving aklyl radicals), a linear free energy relationship was dicovered which correlates the large differences in reactivity among all these R + HI reactions with the inductive effect of the substitutent atoms or groups on the central carbon atom.