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New confined metal complexes built from hemicryptophane ligands for catalysis in confined space and predictable chirality control at the metal core

Abstract : The main goal of this thesis was to design, prepare and applied new hemicryptophane cages as supramolecular ligand for metal coordination in confined space. In particular, this work aimed at developping new method for the obtention of (i) enantiopures complexes with controlled helicity and (ii) new confined catalyst with enhanced efficiency and selectivity. The first part consist in a comprehensive literrature review about (i) history of the development of such cage compounds, as well as their applications in recognition and catalysis and (ii) recent examples of control and transfer of chirality within tripodal cages. Then, results about how chirality transfer in a new hemicryptophane can controls the propeller arrangement of the tris(2-pyridylmethyl)amine ligand and its corresponding copper-complex will be discussed. We then studied new TBTA-based hemicryptophane cages as new ligands for copper-catalyzed alkyne-azide cycloaddition (CuAAC) in confined space. Finally, new hemicryptophane cages displaying two metal binding-sites in a single cavity have been developed aiming at reproducing the key structure of methane monooxygenases enzymes.
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Submitted on : Monday, May 3, 2021 - 10:10:08 AM
Last modification on : Tuesday, May 4, 2021 - 3:31:23 AM

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  • HAL Id : tel-03215019, version 1

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Gege Qiu. New confined metal complexes built from hemicryptophane ligands for catalysis in confined space and predictable chirality control at the metal core. Catalysis. Ecole Centrale Marseille, 2020. English. ⟨NNT : 2020ECDM0008⟩. ⟨tel-03215019⟩

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