文摘
An Fep>Vp>(O) complex has been synthesized from equimolar solutions of (Et4N)2[Fep>IIIp>(Cl)(biuret-amide)] and mCPBA in CH3CN at room temperature. The Fep>Vp>(O) complex has been characterized by UV鈥搗is, EPR, M枚ssbauer, and HRMS and shown to be capable of oxidizing a series of alkanes having C鈥揌 bond dissociation energies ranging from 99.3 kcal molp>鈥?p> (cyclohexane) to 84.5 kcal molp>鈥?p> (cumene). Linearity in the Bell鈥揈vans鈥揚olayni graph and the finding of a large kinetic isotope effect suggest that hydrogen abstraction is engaged the rate-determining step.