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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Libération du monoxyde d'azote induite par deux photons à partir de complexes ruthénium-nitrosyle contenant des ligands de capacités push-pull différentes / Two-photon induced photorelease of nitric oxide from ruthenium-nitrososyl complexes containing ligands with various push-pull capabilities

Bukhanko, Valerii 20 September 2018 (has links)
Ce travail intitulé " Libération du monoxyde d'azote induite par deux photons à partir de complexes ruthénium-nitrosyle contenant des ligands de capacités push-pull différentes " a été consacré à l'étude des principaux facteurs qui déterminent l'efficacité des complexes ruthénium- nitrosyles (Ru(NO)) dans l'absorption à deux photons (ADP) et à l'amélioration de leur section efficace ADP par modification de la nature et de la structure de leurs ligands. A partir de complexes précédemment obtenus dans le groupe de recherche du Prof. I. Malfant, nous avons effectué diverses modifications structurales. Il a été montré que la substitution des ligands monodentes par la 2,2'-bipyridine dans les complexes de Ru(NO) conduit à une légère augmentation de la section efficace, mais cette modification diminue le rendement quantique du relargage du monoxyde d'azote NO. La partie synthétique du travail a principalement porté sur la modification du ligand. / The work "Two-photon induced photorelease of nitric oxide from ruthenium-nitrosyl complexes containing ligands of various push-pull capabilities" was devoted to the revealing of main factors that determine the efficiency of ruthenium-nitrosyl complexes in two-photon absorption (TPA) and the improvement of TPA cross-section through modification of the ligands nature and their structure. Starting from complexes previously obtained by the research group of Prof. I. Malfant, we have modified their structure in several directions. It was shown that substitution of monodentate ligands by 2,2'-bipyridine in ruthenium complexes with nitrosyl ligands leads to a slight increase of their TPA cross- section, however this modification decreases the quantum yield of the nitric oxide photo release. Synthetic part of the work was mainly aimed at the modification of the ligand.

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