Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes (Articolo in rivista)

Type

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

Label

• Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Polson M.; Chiorboli C.; Fracasso S.; Scandola F. (2007)
  Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes
  in Photochemical & photobiological sciences (Print)
  (literal)

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

• Polson M.; Chiorboli C.; Fracasso S.; Scandola F. (literal)

Pagina inizio

• 438 (literal)

Pagina fine

• 443 (literal)

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

• 6 (literal)

Rivista

• Photochemical & photobiological sciences (Rivista)

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

• In: Photochemical & Photobiological Sciences, vol. 6 pp. 438 - 443. Special issue in honour of Vincenzo Balzani. RSC- The Royal Society of Chemistry, 2007. (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Dipartimento di Chimica, Universit´a di Ferrara, 44100, Ferrara, Italy ISOF-CNR (Sezione di Ferrara), 44100, Ferrara, Italy (literal)

Titolo

• Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes (literal)

Abstract

• The rod-like binuclear complexes [(ttpy)Ru(tpy-ph2-phbpy)Ru(ttpy)]4+ and [(ttpy)Ru(tpy-ph2-tpy)Ru(phtbpy)]4+ (for abbreviations, see text) have been synthesized and characterized. In both complexes, the polypyridine Ru(II) centers have (N. . )Ru(N. . ) and (N. . )Ru(C. . ) coordination environment. The two isomeric species differ in whether the cyclometalating carbon resides on the bridging or on the terminal ligand. The two complexes have virtually identical energy levels, but MLCT excited states of different (bridging or terminal) ligand localization. They are thus ideally suited to investigate possible effects of excited-state localization on intramolecular energy transfer kinetics. In fact, ultrafast spectroscopic measurements yield different energy transfer time constants for the two isomers, with the bridge-cyclometalated complex (2.7 ps) being faster than the terminal-cyclometalated one (8.0 ps). This difference can be explained in terms of different electronic factors for Dexter energy transfer. The study highlights the peculiar intricacies of intramolecular energy transfer in inorganic dyads involving MLCT excited states. (literal)

Prodotto di

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

Autore CNR

• FRANCO SCANDOLA (Unità di personale esterno)
• CLAUDIO CHIORBOLI (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes" (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

• CLAUDIO CHIORBOLI (Unità di personale interno)
• FRANCO SCANDOLA (Unità di personale esterno)

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

• Photochemical & photobiological sciences (Rivista)

Insieme di parole chiave di

• Parole chiave di "Site-specific electronic couplings in dyads with MLCT excited states. Intramolecular energy transfer in isomeric Ru(II)-Ru(II) cyclometalated complexes" (Insieme di parole chiave)