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Deschenaux, Robert

Nom
Deschenaux, Robert
Affiliation principale
Fonction
Professeur.e ordinaire
Email
Robert.Deschenaux@unine.ch
Identifiants
https://libra.unine.ch/handle/123456789/384
_
0000-0002-1142-0022

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  • Publication
    Accès libre
    [60]Fullerene-based liquid crystals acting as acid-sensitive fluorescent probes
    (2008)
    Pérez, Laura
    ;
    Lenoble, Julie
    ;
    Barberá, Joaquín
    ;
    de la Cruz, Pilar
    ;
    Deschenaux, Robert 
    ;
    Langa, Fernando
    Functionalization of [60]fullerene with liquid-crystalline dendrimers and a dibutylaniline-based phenylenevinylene moiety leads to supramolecular materials, the fluorescence of which responds to acid–base stimuli.
  • Publication
    Accès libre
    Dendritic liquid-crystalline fullerene–ferrocene dyads
    (2006-02-25)
    Campidelli, Stéphane
    ;
    Pérez, Laura
    ;
    Rodríguez-López Julián
    ;
    Barberá, Joaquín
    ;
    Langa, Fernando
    ;
    Deschenaux, Robert 
    First- and second-generation ferrocene-based dendrimers, fullerene and a second-generation liquid-crystalline poly(arylester) dendrimer carrying four cyanobiphenyl units were assembled to elaborate polyfunctional materials displaying mesomorphic and electronic properties. The targeted compounds gave rise to enantiotropic smectic A phases and organized into bilayer structures within the smectic layers. Cyclic voltammetry investigations revealed oxidation and reduction processes in agreement with the presence of both ferrocene and fullerene units. Finally, strong quenching of the fluorescence was obtained for the fullerene–ferrocene dyads suggesting efficient elecron transfer from the ferrocene-based dendrimer to fullerene.
  • Publication
    Accès libre
    Dendritic liquid-crystalline fullerene–ferrocene dyads
    (2006)
    Campidelli, Stéphane
    ;
    Pérez, Laura
    ;
    Rodríguez-López Julián
    ;
    Barberá, Joaquín
    ;
    Langa, Fernando
    ;
    Deschenaux, Robert 
    First- and second-generation ferrocene-based dendrimers, fullerene and a second-generation liquid-crystalline poly(arylester) dendrimer carrying four cyanobiphenyl units were assembled to elaborate polyfunctional materials displaying mesomorphic and electronic properties. The targeted compounds gave rise to enantiotropic smectic A phases and organized into bilayer structures within the smectic layers. Cyclic voltammetry investigations revealed oxidation and reduction processes in agreement with the presence of both ferrocene and fullerene units. Finally, strong quenching of the fluorescence was obtained for the fullerene–ferrocene dyads suggesting efficient elecron transfer from the ferrocene-based dendrimer to fullerene.
  • Publication
    Métadonnées seulement
    Dendritic liquid-crystalline fullerene-ferrocene dyads
    (: Molecular Diversity Preservation International, 2005)
    Campidelli, Stephane
    ;
    Perez, Laura
    ;
    Rodriguez-Lopez, Julian
    ;
    Barbera, Joaquin
    ;
    Langa, Fernando
    ;
    Deschenaux, Robert 
    First- and second-generation ferrocene-based dendrimers, fullerene and a second-generation liq.-cryst. poly(aryl ester) dendrimer carrying four cyanobiphenyl units were assembled to elaborate polyfunctional materials displaying mesomorphic and electronic properties. The targeted compds. gave rise to enantiotropic smectic A phases and organized into bilayer structures within the smectic layers. Cyclic voltammetry investigations revealed oxidn. and redn. processes in agreement with the presence of both ferrocene and fullerene units. Finally, strong quenching of the fluorescence was obtained for the fullerene-ferrocene dyads suggesting efficient electron transfer from the ferrocene-based dendrimer to fullerene. [on SciFinder(R)]
  • Publication
    Accès libre
    Liquid-Crystalline [60]Fullerene-TTF Dyads
    (2005)
    Allard, Emmanuel
    ;
    Oswald, Frédéric
    ;
    Donnio, Bertrand
    ;
    Guillon, Daniel
    ;
    Delgado, Juan Luis
    ;
    Langa, Fernando
    ;
    Deschenaux, Robert 
    [60]Fullerene was functionalized with a TTF derivative and a bis-mesogenic fragment. The synthetic methodology was based on the addition of a malonate derivative to C60 (Bingel-type reaction). Both the malonate and dyad showed smectic B and A phases. The supramolecular organization within the smectic layers was of the monolayer type for the malonate and of the bilayer type for the fullerene derivative. In the latter case, the supramolecular organization was governed by the C60 unit.