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Polymères de coordination cristallins conducteurs à base de dérivés du tétrathiafulvalène

Abstract : Porous coordination polymers or Metal-Organic Frameworks (MOFs) are crystalline architectures displaying interesting properties such as gas storage, gas separation and catalysis. Investigations described in this PhD dissertation focused on a property less explored for these materials, using coordinating tetrathiafulvalene (TTF) derivatives: electronic conductivity. Two approaches have been studied to promote an efficient conductivity pathway. In a first part, a series of symmetrical coordinating TTFs bearing thioether-pyridine or thio-pyridine spacers were synthesized. These TTFs were then employed for the formation of interpenetrated systems to generate stacks of electro-active moieties in the solid state. In a second part, a dissymmetrical TTF was developed and implemented in an alternative approach involving the formation of stacks of sulfur-rich units through interdigitation. This strategy allowed the synthesis of two isostructural materials. Studies of the oxidation state of the TTF within the networks were performed by EPR spectroscopy, followed by measurements of the electronic conductivity of these networks. In a third part, the interdigitation approach has been successfully extended to homo and heteroleptic dithiolene complexes.
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Submitted on : Wednesday, October 14, 2020 - 11:10:13 AM
Last modification on : Thursday, October 15, 2020 - 4:02:53 AM


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  • HAL Id : tel-02966626, version 1



Damien Bechu. Polymères de coordination cristallins conducteurs à base de dérivés du tétrathiafulvalène. Chimie de coordination. Université de Strasbourg, 2019. Français. ⟨NNT : 2019STRAF018⟩. ⟨tel-02966626⟩



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