Photoinduced processes in a dyad made of a linear and an angular perylene bisimide (Articolo in rivista)

Type
Label
  • Photoinduced processes in a dyad made of a linear and an angular perylene bisimide (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c3pp50211b (literal)
Alternative label
  • Lucia Flamigni, Alberto Zanelli, Heinz Langhals and Bernd Böck (2013)
    Photoinduced processes in a dyad made of a linear and an angular perylene bisimide
    in Photochemical & photobiological sciences (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lucia Flamigni, Alberto Zanelli, Heinz Langhals and Bernd Böck (literal)
Pagina inizio
  • 2137 (literal)
Pagina fine
  • 2145 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 12 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per la Sintesi Organica e Fotoreattivita' (ISOF), CNR, Via P. Gobetti 101, 40129 Bologna, Italy. Department of Chemistry, LMU University of Munich, Butenandtstr. 13, D-81377 Munich, Germany (literal)
Titolo
  • Photoinduced processes in a dyad made of a linear and an angular perylene bisimide (literal)
Abstract
  • A dyad (PI0-PIa) made of a linear (PI0) and an angular (PIa) perylene biscarboximide is synthesized and its spectroscopic, electrochemical and photophysical properties investigated in solvents of various polarity. PIa is characterized by a high intersystem crossing. The spectroscopy and electrochemistry data point to a modest electronic coupling. LUMO-LUMO electron transfer from the singlet excited state PI0-1PIa is thermodynamically feasible in polar solvents but its occurrence is precluded by a very fast energy transfer to yield 1PI0-PIa, ken >= 1011 s-1. A HOMO-HOMO electron transfer in the latter state in polar solvents is precluded by the poor driving force, the reaction being unable to compete with the radiative deactivation of the excited state. The efficient energy transfer process is quantitatively examined in the frame of current theories and ascribed to a dipole-dipole (Förster) mechanism (literal)
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