Comparative Electronic Properties of Two Arylene-Cyanovinylene Isomers and of Their Respective Electrogenerated Polymers

Two arylene-cyanovinylene isomers formed by a phenyl unit substituted in para or meta positions by two cyanovinylene-methylthiophene were synthesized. Their main physicochemical properties were studied in order to point out the influence of the nature of the substitution (para vs meta) of the centra...

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Bibliographic Details
Published in:International journal of electrochemical science 2014, Vol.9 (1), p.7382-7393
Main Authors: Mosbah, Salima, Khelifa Beghdouche, Ammar, Benmekhbi, Lotfi, Rault Berthelot, Joëlle, Bencharif, Leila
Format: Article
Language:English
Subjects:
Chemical Sciences
Organic chemistry
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Summary:Two arylene-cyanovinylene isomers formed by a phenyl unit substituted in para or meta positions by two cyanovinylene-methylthiophene were synthesized. Their main physicochemical properties were studied in order to point out the influence of the nature of the substitution (para vs meta) of the central phenyl unit on the electronic properties of the two isomers. The anodic electropolymerization of the two compounds was also studied with a main emphasis on the electrochemical behavior of the derived polymers showing that the specific behavior of the para-substituted isomer is maintained in its polymer leading to a polymer with a lower bandgap (1.95 eV) than the polymer obtained from the meta-substituted isomer (2.16 eV).
ISSN:1452-3981
1452-3981