Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Alternative label

• Armaroli N., Accorsi G., Gisselbrecht J. P., Gross M., Krasnikov V., Tsamouras D., Hadziioannou G., Gomez-Escalonilla M. J., Langa F., Eckert J. F., Nierengarten J. F. (2002)
  Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety
  in Journal of materials chemistry (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Armaroli N., Accorsi G., Gisselbrecht J. P., Gross M., Krasnikov V., Tsamouras D., Hadziioannou G., Gomez-Escalonilla M. J., Langa F., Eckert J. F., Nierengarten J. F. (literal)

Pagina inizio

• 2077 (literal)

Pagina fine

• 2087 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 12 (literal)

Rivista

• Journal of materials chemistry (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• In questo lavoro viene descritto l'utilizzo di varie diadi OPV-fullerene come materiali attivi in dispositivi fotovoltaici. Nel caso di una triade OPV-C60-pirazolina, la sfera di carbonio puà agire sia da accettore di energia che di elettroni, operando su opportuni stimoli esterni: luce di eccitazione, pH, temperatura. Questo sistema costituisce il primo esempio di interruttore molecolare basato su fullerene C60. (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto ISOF-CNR; Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide, Universite´ Louis Pasteur et CNRS, Strasbourg, France; Department for Polymer Chemistry and Materials Science Center, University of Groningen, The Netherlands; Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Toledo, Spain; Institut de Physique et Chimie des Mate´riaux de Strasbourg, Groupe des Materiaux Organiques, Universite´ Louis Pasteur et CNRS, Strasbourg, France. (literal)

Titolo

• Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety (literal)

Abstract

• Fullerene derivatives A-3PV and B-3PV in which an oligophenylenevinylene trimeric subunit (3PV) is attached to C60 through, respectively, a pyrrolidine or a pyrazoline ring have been prepared. The electrochemical and excited-state properties Of the multicomponent arrays A-3PV and B-3PV have been investigated in Solution using the related oligophenylenevinylene derivative 3PV, fullerenopyrrolidine A and fullerenopyrazoline B as reference Compounds. In A-3PV quantitative OPV --> C60 photoinduced singlet-singlet energy transfer has been observed. Population of the lowest fullerene singlet excited state is followed by nearly quantitative intersystem crossing to the lowest fullerene triplet excited state in CH2Cl2 and toluene. whereas OPV --> C60 electron transfer is able to compete significantly in the more polar solvent benzonitrile. In the case of B-3PV, the excited-state properties are more complex due to the electron donating ability of the pyrazoline ring. As observed for A-3PV, quantitative OPV --> C-60 photoinduced singlet-singlet energy transfer Occurs in B-3PV. However, in this case, the population of the lowest fullerene singlet excited state is followed by an efficient electron transfer from the pyrazoline ring in CH2Cl2 and benzonitrile. In B-3PV. studies of the dependence of photoinduced processes on solvent polarity. addition of acid. and temperature also reveal that this Compound can be considered as a fullerene-based molecular switch, the switchable parameters being the photoinduced processes. Finally, A-3PV and B-3PV have been tested as active materials in photovoltaic devices and the differences of light to energy conversion efficiencies found for the two compounds have been rationalised on the basis of their photophysical properties. (literal)

Prodotto di

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Materiali Avanzati per la COnversione di energia Luminosa (MACOL) (PM.P04.010.001) (Modulo)

Autore CNR

• GIANLUCA ACCORSI (Unità di personale interno)
• NICOLA ARMAROLI (Persona)

Insieme di parole chiave

• Keywords of "Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Materiali Avanzati per la COnversione di energia Luminosa (MACOL) (PM.P04.010.001) (Modulo)

Autore CNR di

• GIANLUCA ACCORSI (Unità di personale interno)
• NICOLA ARMAROLI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of materials chemistry (Rivista)

Insieme di parole chiave di

• Keywords of "Photoinduced Processes in Fulleropyrrolidine and Fulleropyrazoline Derivatives Substituted with an Oligophenylenevinylene Moiety" (Insieme di parole chiave)