Issue 45, 2010
From the journal:

Journal of Materials Chemistry

Electropolymerizable 3Dπ-conjugated architectures with ethylenedioxythiophene (EDOT) end-groups as precursors of electroactive conjugated networks†

Flavia Piron,ab   Philippe Leriche,a   Ion Grosub  and  Jean Roncali*a  

* Corresponding authors

a Group Linear Conjugated Systems, CNRS, MOLTECH, University of Angers, 2 Bd Lavoisier, France
E-mail: jean.roncali@univ-angers.fr

b Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, 11 Arany Janos str, Cluj-Napoca, Romania

Abstract

Three-dimensional conjugated architectures involving conjugated branches with terminal EDOT groups attached onto a bithiophene core twisted by ca. 90° 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 π-conjugated networks the electrochemical and optical properties of which can be tuned through the length and chemical composition of the oligomeric conjugated links.

Graphical abstract: Electropolymerizable 3Dπ-conjugated architectures with ethylenedioxythiophene (EDOT) end-groups as precursors of electroactive conjugated networks

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Article information

DOI
https://doi.org/10.1039/C0JM01873B
Article type
Paper
Submitted
12 Jun 2010
Accepted
21 Jul 2010
First published
30 Sep 2010

J. Mater. Chem., 2010,20, 10260-10268

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Electropolymerizable 3Dπ-conjugated architectures with ethylenedioxythiophene (EDOT) end-groups as precursors of electroactive conjugated networks

F. Piron, P. Leriche, I. Grosu and J. Roncali, J. Mater. Chem., 2010, 20, 10260 DOI: 10.1039/C0JM01873B

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