Electropolymerizable 3Dπ-conjugated architectures with ethylenedioxythiophene (EDOT) end-groups as precursors of electroactive conjugated networks
| Autor: | Flavia Piron, Ion Grosu, Philippe Leriche, Jean Roncali |
|---|---|
| Přispěvatelé: | MOLTECH-Anjou, Université d'Angers (UA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Steric effects
chemistry.chemical_classification Materials science Chemical structure 02 engineering and technology General Chemistry Polymer Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Stille reaction chemistry Polymer chemistry Materials Chemistry Side chain [CHIM]Chemical Sciences Cyclic voltammetry 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry Journal of Materials Chemistry, 2010, 20 (45), pp.10260-10268. ⟨10.1039/C0JM01873B⟩ |
| ISSN: | 1364-5501 |
| DOI: | 10.1039/C0JM01873B⟩ |
| Popis: | International audience; Three-dimensional conjugated architectures involving conjugated branches with terminal EDOT groups attached onto a bithiophene core twisted by ca. 90 degrees by steric interactions have been synthesized by Stille coupling reactions. The UV-Vis absorption spectra recorded in solution show complex spectral features that depend on both the size and chemical structure of the main conjugated segment and of the conjugated side chains. Thanks to the fixation of the terminal EDOT groups, these compounds undergo straightforward and complete electropolymerization to produce stable electrode materials. The analysis of the electrochemical and optical properties of the polymers by cyclic voltammetry and spectroelectrochemistry suggests that the electrochemical coupling of the terminal EDOT groups leads to the formation of pi-conjugated networks the electrochemical and optical properties of which can be tuned through the length and chemical composition of the oligomeric conjugated links. |
| Databáze: | OpenAIRE |
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