We are a DFG-funded Research Unit investigating the “Bioinspired Oxidation Catalysis with Iron Complexes”. Our goal is to provide improved bioinspired homogenous catalysts for oxygenation reactions using environmentally benign oxidants such as O2 and H2O2 that results in oxygen-atom transfer, hydrogen atom abstraction, and C-H bond activation. This will be achieved by gathering the wide expertise of the applicants in bioinorganic model chemistry, trapping and spectroscopic analysis of reactive intermediates, kinetic analysis, catalysis, and theoretical modeling to obtain a detailed insight into the reactive intermediates and mechanisms of six already existing systems for bioinspired oxidation catalysis.