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Conception et propriétés photophysiques de polymères de coordination et de polymères organométalliques

Abstract : This work focuses on the design and study of photophysical properties of coordination and organometallics polymers. Initially, we focused on adducts formed from copper(I) halides (CuxXyLz; X = I, Br, Cl). Indeed, these compounds have great structural diversity depending on the synthesis conditions (nature of ligand, stoichiometry, choice of solvent, temperature...) and various luminescence properties. We focused on the synthesis, physical and photophysical characterization of copper(I) halide adducts based on monothioether (RSR) and dithioether (RS(CH2)nSR) ligands. Then, we extended our study to the adducts of copper(I) halide coordinated by phosphorus P-chirogenics ligands (ie chirality carried by the phosphorus atom) and then to CuX adducts coordinated by both phosphorus ligands (PPh3 or dppm)) and mono- or dithioether ligands. Secondly, the impact of the incorporation of P-chirogenics ligands (P(C17H35)(Ph)(i-Pr)) on the photophysical properties of organometallic conjugated polymers 1D based on platinum(II) and arylbisethynyles ligands (-C≡C(Ar)C≡C-) was investigated. This type of polymer based on platinum(II) is often used as a model for the understanding of excited states energy transfers. These polymers, once characterized, were compared to the achiral analogues containing the fragment of trans-Pt(P(PBu)3)2 and several differences were noted. The findings and conclusions on the structure-property relationship are useful in the future design of photonic materials bearing chiral groups.
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Antony Lapprand. Conception et propriétés photophysiques de polymères de coordination et de polymères organométalliques. Polymères. Université de Franche-Comté, 2015. Français. ⟨NNT : 2015BESA2031⟩. ⟨tel-01661366⟩

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