Issue 8, 2004
From the journal:

Journal of Materials Chemistry

Liquid-crystalline fullerene–ferrocene dyads

Stéphane Campidelli,a   Ester Vázquez,b   Dragana Milic,b   Maurizio Prato,*b   Joaquín Barberá,*c   Dirk M. Guldi,*d   Massimo Marcaccio,e   Demis Paolucci,e   Francesco Paolucci*e  and  Robert Deschenaux*a  

* Corresponding authors

a Institut de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, Case postale 2, 2007 Neuchâtel, Switzerland
E-mail: robert.deschenaux@unine.ch

b Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, 34127 Trieste, Italy

c Química Orgánica, Facultad de Ciencias-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain

d University of Notre Dame, Radiation Laboratory, Notre Dame, Indiana 46556, USA

e Università di Bologna, Dipartimento di Chimica “G. Ciamician” via Selmi 2, Bologna, Italy

Abstract

The 1,3-dipolar cycloaddition reaction was used to assemble fullerene, ferrocene and a second-generation liquid-crystalline cyanobiphenyl-based dendrimer. The targeted compound displayed an enantiotropic smectic A phase from 40 to 135 °C. The d-layer spacing was determined by X-ray diffraction, and was found to be independent of temperature with a value of 95 Å. Molecular modeling and structural considerations suggested partial bilayer organization of the mesogenic molecular units within the smectic layers. Oxidation or reduction processes of the basic components (ferrocene, fullerene, dendrimer) were investigated by electrochemical techniques, and were in agreement with the structure. Photoinduced electron transfer from ferrocene to fullerene was identified, most likely with a “through space” mechanism.

Graphical abstract: Liquid-crystalline fullerene–ferrocene dyads

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Article information

DOI
https://doi.org/10.1039/B316085H
Article type
Paper
Submitted
10 Dec 2003
Accepted
17 Feb 2004
First published
09 Mar 2004

J. Mater. Chem., 2004,14, 1266-1272

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Liquid-crystalline fullerene–ferrocene dyads

S. Campidelli, E. Vázquez, D. Milic, M. Prato, J. Barberá, D. M. Guldi, M. Marcaccio, D. Paolucci, F. Paolucci and R. Deschenaux, J. Mater. Chem., 2004, 14, 1266 DOI: 10.1039/B316085H

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