Structural control of the horizontal double ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Structural control of the horizontal double fixation of oligothiophenes on gold
Auteur(s) :
Tran, T.K. [Auteur]
Oçafrain, M. [Auteur]
Karpe, S. [Auteur]
Blanchard, P. [Auteur]
Roncali, J. [Auteur]
Lenfant, Stephane [Auteur]
Godey, Sylvie [Auteur]
Vuillaume, D. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Oçafrain, M. [Auteur]
Karpe, S. [Auteur]
Blanchard, P. [Auteur]
Roncali, J. [Auteur]
Lenfant, Stephane [Auteur]
Godey, Sylvie [Auteur]
Vuillaume, D. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Titre de la revue :
Chemistry - a European Journal
Pagination :
6237-6246
Éditeur :
Wiley-VCH Verlag
Date de publication :
2008
ISSN :
0947-6539
Mot(s)-clé(s) en anglais :
Conjugation
Dithiols
Gold
Monolayers
Self-assembly
Dithiols
Gold
Monolayers
Self-assembly
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
Quaterthiophenes bearing one (1) or two (2) alkanethiol chains attached at the internal β-position of the outermost thiophene ring through a sulfide linkage have been synthesized. Cyclic voltammetric analysis of their ...
Lire la suite >Quaterthiophenes bearing one (1) or two (2) alkanethiol chains attached at the internal β-position of the outermost thiophene ring through a sulfide linkage have been synthesized. Cyclic voltammetric analysis of their electrochemical behavior in solution suggests that electrooxidation of the doubly substituted oligomer 2 leads to electrodeposition of a poly(disulfide) on the anode surface. Monolayers of 1 or 2 on gold surfaces have been investigated and characterized by cyclic voltammetry, ellipsometry, contact angle measurement, and X-ray photoelectron spectroscopy. The results of these investigations indicate that introduction of two thiol groups in the structure leads to double fixation of the oligothiophene chain with the main axis of the conjugated system oriented parallel to the surface. The effects of single versus double fixation of the quaterthiophene chain on the electrochemical properties and stability of the corresponding monolayers are discussed.Lire moins >
Lire la suite >Quaterthiophenes bearing one (1) or two (2) alkanethiol chains attached at the internal β-position of the outermost thiophene ring through a sulfide linkage have been synthesized. Cyclic voltammetric analysis of their electrochemical behavior in solution suggests that electrooxidation of the doubly substituted oligomer 2 leads to electrodeposition of a poly(disulfide) on the anode surface. Monolayers of 1 or 2 on gold surfaces have been investigated and characterized by cyclic voltammetry, ellipsometry, contact angle measurement, and X-ray photoelectron spectroscopy. The results of these investigations indicate that introduction of two thiol groups in the structure leads to double fixation of the oligothiophene chain with the main axis of the conjugated system oriented parallel to the surface. The effects of single versus double fixation of the quaterthiophene chain on the electrochemical properties and stability of the corresponding monolayers are discussed.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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