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Electrochemical properties of a liquid-crystalline mixed fullerene–ferrocene material and related species

Auteur(s)
Carano, Maurizio
Chuard, Thierry
Deschenaux, Robert 
Institut de chimie 
Even, Michael
Marcaccio, Massimo
Paolucci, Francesco
Prato, Maurizio
Roffia, Sergio
Date de parution
2002
In
Journal of Materials Chemistry, Royal Society of Chemistry (RSC), 2002/12/4/829-833
Résumé
The electrochemical properties of a fullerene–ferrocene liquid crystal are reported. The electrochemical study was carried out under strictly aprotic conditions: a total of seven reduction peaks were detected in the negative potential region, and two oxidation peaks in the positive potential one. Comparison of the data with those obtained from suitable model compounds (i.e., analogous fullerene- or ferrocene-free materials ) has allowed the assignment of all reduction and oxidation steps. The CV study evidenced the occurrence of a fast follow-up chemical reaction coupled to the third (at 25 °C) or fourth (at –60 °C) reduction of either <b>1</b> or <b>3</b>. Such a reaction, presumably related to the cleavage of one of the cyclopropane bonds, is quantitatively reversed upon re-oxidation. Conversely, under bulk electrolysis conditions (second reduction), the species undergo the retro-Bingel reaction, i.e. the irreversible removal of the bis(alkoxycarbonyl)methano adducts to give the parent C<sub>60</sub>.
Identifiants
https://libra.unine.ch/handle/123456789/14312
_
10.1039/b111039j
Type de publication
journal article
Dossier(s) à télécharger
 main article: Carano_Maurizio_-_Electrochemical_propertiex_of_a_liquid-crystalline_20100503.pdf (335.6 KB)
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