Spectroelectrochemical Study of a Series of Fused Oligothiophenes

Optical, electrochemical and spectroelectrochemical features of a family of triisopropylsilyl (TIPS) end-capped oligothienoacenes from the tetramer to the octamer are studied. The oxidation potentials and the formation and stability of the different oxidized species are influenced by the oligothieno...

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Detalhes bibliográficos
Autor principal: Osuna,R. Malavé (author)
Outros Autores: Ferrón,C. Capel (author), Vercelli,B. (author), Hernández,V. (author), Zotti,G. (author), Navarrete,J.T. López (author)
Formato: article
Idioma:eng
Publicado em: 2010
Assuntos:
oligothienoacenes
electrochemistry
spectroelectrochemistry
Texto completo:http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100006
País:Portugal
Oai:oai:scielo:S0872-19042010000100006
Descrição
Resumo:Optical, electrochemical and spectroelectrochemical features of a family of triisopropylsilyl (TIPS) end-capped oligothienoacenes from the tetramer to the octamer are studied. The oxidation potentials and the formation and stability of the different oxidized species are influenced by the oligothienoacene chain length. The effect of the steric hindrance caused by the substituents on the p-dimerization of the radical cations is also investigated by comparing a trimethylsilyl (TMS) substituted pentathienoacene with a TIPS substituted one.

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