Thesis presented December 16, 2019

Abstract:
This project presents the synthesis and the study of a new iron catalyst. This manuscript proposes to deepen the nature of binuclear hemic µ-nitruro iron complexes, which have been previously described excellent in methane oxydation and defluorination of small substrates. Their inspiration comes from to iron enzymes: hemic mononuclear (cyt P450) and non hemic binuclear (sMMO). The idea of this présentation is to adapt the concept to a new kind of non hemic, macrocycle. This thesis describes firstly the synthesis and study of recently described tetracarbenic iron macrcocycle. The activity in aziridination has been investigated and deepened in order to understand the mechanism of the complex of iron (II) and (III). Intermediates with iodinane nitrène donor (PhINTs, ArINTs) have been studied with different spectroscopic methods. The second part is about the incorporation of the carbenic complexe into the synthesis of a new class of heteroleptic binuclear iron µ-nitruro catalysts. This includes azide activation to form the Fe-N-Fe bond and the corresponding spectroscopic studies.

Keywords:
iron complexes, tetracarbene, catalysts, µ-nitruro, nitrene transfer