Production of a Putative Iron(V)−Oxocorrole Species by Photo-Disproportionation of a Bis-Corrole−Diiron(IV)−μ-Oxo Dimer: Implication for a Green Oxidation Catalyst

Abstract

Photo-disproportionation of a bis-corrole diiron(IV) μ-oxo dimer gave a corrole iron(III) species and a corrole iron(V)-oxo species that can be detected and studied in real time. Air oxidation of the corrole iron(III) species regenerated the bis-corrole diiron(IV) μ-oxo dimer, allowing the development of a photo-catalytic method for organic oxidations using molecular oxygen and visible light.

Enhanced iron(III) corrole-catalyzed oxidations with iodobenzene diacetate: Synthetic and mechanistic investigations

“…Our mechanistic studies also indicate that a corrole-iron(V)-oxo species detected in the previous http://dx.doi.org/10.1016/j.apcata.2015.02.047 0926-860X/© 2015 Elsevier B.V. All rights reserved. laser flash photolysis (LFP) studies [29,30] is favored as the active oxidant.…”

Reduction of (chloro)-μ-nitrido-bis[(tetra-tert-butyl-phthalocyaninato)iron(IV)] with organic N-bases

“…The study of influence of the structure and composition of the synthetic systems on their catalytic properties and possible transformations during a chemical reaction remains relevant within the framework of biomimetic approach. According to the literature reports, tetrapyrrole complexes of transition metals can be successfully used as active components of such systems [1][2][3][4][5][6][7]. These compounds play an important role in biological processes.…”

“…Both binuclear and mononuclear iron complexes activate some oxidant (H 2 O 2 , organic peroxides, hypervalent iodine compounds, etc.) to form high valent oxo species with remarkable catalytic properties [2][3][4][5][6][7][8][9]. However, despite of catalytic activity of oxo-bridged structures, their study is hampered due to their readily transformations during chemical reactions.…”

Reaction of μ-Nitrido Diiron(IV) Phthalocyanine and Dicumyl Peroxide

“…), с образова-нием высоковалентных оксо-форм, характеризующихся высокой каталитической активностью. [6,7] Однако оста-ется проблемой низкая устойчивость μ-оксодимерных комплексов.…”