The photolysis of methyl isopropyl ketone has been used to study the reaction of methyl and isopropyl radicals at 100deg; in the gas phase. The disproportionation/combination ratio is 0.17plusmn;0.03. The ratio, isobutane2/ethanetimes;hexane is 3.5plusmn;0.33. Deuterated ketone was used to permit correction for abstraction reactions.
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