http://www.cnr.it/ontology/cnr/individuo/prodotto/ID50869
A Triad Based on an Iridium(III) Bis-Terpy Complex Leading to a Charge Separated-State with 120 ms Lifetime at Room Temperature (Articolo in rivista)
- Type
- Label
- A Triad Based on an Iridium(III) Bis-Terpy Complex Leading to a Charge Separated-State with 120 ms Lifetime at Room Temperature (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
L. Flamigni, E. Baranoff, J.-P. Collin, J.-P. Sauvage, (2006)
A Triad Based on an Iridium(III) Bis-Terpy Complex Leading to a Charge Separated-State with 120 ms Lifetime at Room Temperature
in Chemistry (Weinh., Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- L. Flamigni, E. Baranoff, J.-P. Collin, J.-P. Sauvage, (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
- Instituto ISOF-CNR, Via P. Gobetti 101, 40129 Bologna (Italy)
Laboratoire de Chimie Organo-Minerale, UMR 7513 CNRS, UniversitD Louis Pasteur, Institut Le Bel 4, rue Blaise Pascal, 67070 Strasbourg (France) (literal)
- Titolo
- A Triad Based on an Iridium(III) Bis-Terpy Complex Leading to a Charge Separated-State with 120 ms Lifetime at Room Temperature (literal)
- Abstract
- Abstract: A triad D-Ir-A, where Ir is
an IrIII bisterpyridine complex connected
through an amidophenyl spacer to
D, a triphenylamine electron donor,
and to A, a naphthalene bisimide electron
acceptor, has been synthesized
and electrochemically investigated. The
photoinduced processes in the triad,
which is more than 4-nm long, have
been characterized by steady-state and
time-resolved optical spectroscopy by
comparison with the model dyads D-Ir,
Ir-A, and the reference monomers D,
Ir, and A. A sequential electron transfer
occurs upon excitation of the D and
Ir units, leading to the charge-separated
state D+-Ir?-A in 100% yield and
subsequently to D+-Ir-A? in about
10% yield. The final charge-separated
state has a lifetime at room temperature
of 120 ms in air-free acetonitrile
and of 100 ms in air-equilibrated solvent.
Excitation of the A units does not
yield intramolecular reactivity, but the
resulting triplet-excited state localized
on the acceptor, D-Ir-3A, displays intermolecular
reactivity. (literal)
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