COMBINATION AND DISPROPORTIONATION OF METHYL AND 2-PROPYL RADICALS WITH 1,1,2-TRIMETHYLALLYL RADICALS

The combinations and disproportionations of the CH3. and 2-propyl (iP.) radicals with the 1,1,2-trimethylallyl (TMA.) radical have been studied in the gas phase in the temperature interval of 389-451 K and 490-540 K, respectively. For the ratios of the terminal (t) and non-terminal (n) combinations of the CH3. and iP. radicals with the TMA. radical, values of 1.9 +/- 0.1 and 2.84 +/-+/- 0.10 were obtained, respectively. The ratios of the tt and tn and nn to tn combinations of the TMA. radical were 1.59 and 0.46, respectively. The disproportionation-combination ratios were DELTA(CH3., TMA.) = 0.022 +/-+/- 0.012 and DELTA(iP., TMA.) = 0.026 +/- 0.011.