Sluggish reactivity by a nonheme iron(IV)-tosylimido complex as compared to its oxo analogue

摘要: High-valent iron-nitrido intermediates have been postulated as reactive in various enzymes, including the nitrogenases and cytochromes P450, but so far few trapped characterized. As little is known about their oxidative spectroscopic properties, we decided to create biomimetic models of iron(IV)-imido complexes compare structure reactivity with analogous iron(IV)-oxo systems. In this work report synthesis characterization a novel [FeIV(NTs)(Bntpen)]2+ complex (Bntpen = N1-benzyl-N1,N2,N2-tris(pyridine-2-ylmethyl)ethane-1,2-diamine) study its patterns respect hydrogen atom abstraction nitrogen transfer reactions. The compared pentadentate ligand systems well species same features highlights differences chemical properties patterns. It shown that dependent on metal system affects physicochemical oxidant such redox potential, which main driving force for reaction mechanism substrates.