Liquid-crystalline fullerene-ferrocene dyads
Author(s)
Campidelli, Stephane
Vazquez, Ester
Milic, Dragana
Prato, Maurizio
Barbera, Joaquin
Guldi, Dirk M.
Marcaccio, Massimo
Paolucci, Demis
Paolucci, Francesco
Date issued
2004
In
J. Mater. Chem.
Vol
8
No
14
From page
1266
To page
1272
Subjects
liq crystal property structure fullerene ferrocene dyad
Abstract
The 1,3-dipolar cycloaddn. reaction was used to assemble fullerene, ferrocene and a 2nd-generation liq.-cryst. cyanobiphenyl-based dendrimer. The targeted compd. displayed an enantiotropic smectic A phase from 40 to 135°. The d-layer spacing was detd. by x-ray diffraction, and is independent of temp. with a value of 95 Å. Mol. modeling and structural considerations suggested partial bilayer organization of the mesogenic mol. units within the smectic layers. Oxidn. or redn. processes of the basic components (ferrocene, fullerene, dendrimer) were studied by electrochem. techniques, and were in agreement with the structure. Photoinduced electron transfer from ferrocene to fullerene was identified, most likely with a through space mechanism. [on SciFinder(R)]
Publication type
journal article