Nonheme FeIVO complexes that can oxidize the C-H bonds of cyclohexane at room temperature.

摘要: Nonheme oxoiron(IV) complexes of two pentadentate ligands, N4Py (N,N-bis(2-pyridylmethyl)-bis(2-pyridyl)methylamine) and Bn-tpen (N-benzyl-N,N‘,N‘-tris(2-pyridylmethyl)-1,2-diaminoethane), have been generated found to spectroscopic properties similar the closely related tetradentate TPA (tris(2-pyridylmethyl)amine) complex reported earlier. However, unlike complex, a considerable lifetime at room temperature. This greater thermal stability has allowed hydroxylation alkanes with C−H bonds as strong 99.3 kcal/mol be observed Furthermore, large deuterium KIE value is in oxidation ethylbenzene. These observations lend credence postulated mechanisms mononuclear nonheme iron enzymes that invoke intermediacy species.