Thiophene-based conjugated oligomers and polymers with high electron affinity

Authors

  • Dr. Hoang Anh Ho,

    1. Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
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  • Dr. Hugues Brisset,

    1. Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
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  • Dr. El Hadj Elandaloussi,

    1. Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
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  • Dr. Pierre Frère,

    1. Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
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  • Prof. Jean Roncali

    Corresponding author
    1. Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
    • Ingénierie Moléculaire et Matériaux Organiques CNRS EP 66, Université d'Angers 2 Blvd Lavoisier, F-49045 Angers (France)
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Abstract

The control of the bandgap of thiophene-based polymers and oligomers has become an important topic in recent years. One strategy is the introduction of electron-withdrawing groups in particular positions in the conjugated chain. An extension of this strategy is reported here: the synthesis and electrochemical investigation (e.g., analysis of the electropolymerization behavior) of a new series of π-conjugated oligomers containing 3, 4, and 5 heterocycles and two CN groups at various positions of the ethylene linkage.

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