Rate constants for the homolysis of aryl- substituted α-cumyl tert-butyl peroxides (X-PhCMe2OOCMe3) produce a Hammett plot with a ρ value of −0.22±.04. Both steric and electronic parameters influence the decomposition rate constants of tertiary alkyl peroxides with bulky substituents: log krel = (−0.40±08)Σσ* −(0.43±.02)ΣEcs.
芳基取代的α-枯基
叔丁基过氧化物(X-PhCMe 2 OOCMe 3)均质的速率常数产生了一个Hammett图,其ρ值为-0.22±.04。两个空间和电子参数影响叔烷基过氧化物的分解速率常数大的取代基:日志ķ相对=(-0.40±08)Σσ* - (0.43±0.02)ΣE Ç小号。