http://www.cnr.it/ontology/cnr/individuo/prodotto/ID51239
Photoinduced electron transfer in a fullerene-oligophenylenevinylene dya (Articolo in rivista)
- Type
- Label
- Photoinduced electron transfer in a fullerene-oligophenylenevinylene dya (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1039/b9nj00259f (literal)
- Alternative label
A. Gégout, J. L. Delgado, J.-F. Nierengarten, B. Delavaux-Nicot, A. Listorti, C. Chiorboli, A. Belbakra and N. Armaroli (2009)
Photoinduced electron transfer in a fullerene-oligophenylenevinylene dya
in New journal of chemistry (1987)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A. Gégout, J. L. Delgado, J.-F. Nierengarten, B. Delavaux-Nicot, A. Listorti, C. Chiorboli, A. Belbakra and N. Armaroli (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Laboratoire de Chimie des Materiaux Moleculaires,
Ecole Europeenne de Chimie, Polymeres et Materiaux,
Universite´ de Strasbourg et CNRS (UMR 7509), 25 rue Becquerel,
67087 Strasbourg Cedex 2, France
Laboratoire de Chimie de Coordination du CNRS,
205 route de Narbonne, 31077 Toulouse Cedex 4, France.
Istituto per la Sintesi Organica e la Fotoreattivita`, Consiglio
Nazionale delle Ricerche, via Gobetti 101, 40129 Bologna and Via
Borsari 46 44100 Ferrara, Italy. (literal)
- Titolo
- Photoinduced electron transfer in a fullerene-oligophenylenevinylene dya (literal)
- Abstract
- A dialkylamino-subtituted oligophenylenevinylene (OPV) derivative bearing a fullerene subunit
(F-D) has been prepared. The electrochemical properties of F-D have been investigated by cyclic
voltammetry. Whereas the first reduction is centered on the C60 unit, the oxidation is centered on
the dialkylamino subunit of the OPV rod. In F-D, both the OPV and the fullerene-centered
fluorescence bands are quenched and this suggests the presence of photoinduced electron transfer
from the amino-substituted OPV to the carbon sphere. By means of bimolecular quenching
experiments, transient absorption spectral fingerprints of the radical cationic species have been
detected in the VIS (670 nm) and NIR (1300-1500 nm) regions, along with the much weaker
fullerene anion band at lmax = 1030 nm. Intramolecular photoinduced electron transfer occurs in
the investigated dyad and a relatively long-lived charge-separated state has been detected, with a
lifetime of 135 and 85 ns in toluene and benzonitrile, respectively. The longer lifetime in the less
polar solvent suggests a Marcus inverted region behavior for the charge recombination process. (literal)
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- Autore CNR
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