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Liquid-Crystalline Mixed [5 : 1]Hexa-adducts of [60]Fullerene. Preliminary Communication
Auteur(s)
Date de parution
2007
In
Helvetica Chimica Acta, Wiley, 2007/90/5/957-962
Résumé
A liquid-crystalline mixed [5 : 1]hexa-adduct of [60]fullerene was synthesized by addition of two different malonate derivatives onto C60. The hexa-adduct derivative <b>2</b> was prepared by a stepwise synthetic procedure (fullerene -> mono-adduct of C<sub>60</sub> -> hexa-adduct of C<sub>60</sub>). Cyanobiphenyl and octyloxybiphenyl derivatives were selected as mesogens. The malonate derivatives showed either a monotropic nematic phase or a monotropic smectic A phase, and the hexa-adduct derivative gave rise to an enantiotropic smectic A phase.
Identifiants
Type de publication
journal article
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