Energy transfer in hybrids based on a thiophene substituted ethynyl-bipyridine dimer decorated with Re(I), Ru(II), and Os(II) units (Articolo in rivista)

Type
Label
  • Energy transfer in hybrids based on a thiophene substituted ethynyl-bipyridine dimer decorated with Re(I), Ru(II), and Os(II) units (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ic051717w (literal)
Alternative label
  • S. Goeb; A. De Nicola; R. Ziessel; C. Sabatini; A. Barbieri; F. Barigelletti (2006)
    Energy transfer in hybrids based on a thiophene substituted ethynyl-bipyridine dimer decorated with Re(I), Ru(II), and Os(II) units
    in Inorganic chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. Goeb; A. De Nicola; R. Ziessel; C. Sabatini; A. Barbieri; F. Barigelletti (literal)
Pagina inizio
  • 1173 (literal)
Pagina fine
  • 1183 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 45 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Univ Strasbourg 1, F-67087 Strasbourg 02, France 2. CNR, ISOF, CNR, Ist Sintesi Organ & Fotoreatt, I-40129 Bologna, Italy 3. Univ Strasbourg 1, Ecole Chim Polymeres Mat, Lab Chim Mol, F-67087 Strasbourg 02, France (literal)
Titolo
  • Energy transfer in hybrids based on a thiophene substituted ethynyl-bipyridine dimer decorated with Re(I), Ru(II), and Os(II) units (literal)
Abstract
  • The preparation, structural features, electrochemical behavior, and optical properties (at room temperature and at 77 K) are reported for a series of thiophene-containing hybrids based on the bent conjugated backbone of a rigid ditopic ligand, the dimeric moiety 3,4-dibutyl-2,5-bis{5'-[(3,4-dibutylthien-2-ylethynyl)-2,2'-bipyridin-5-yl]ethynyl}thiophene (TBTBT). Within the dimer, the diethynyl-2,2'-bipyridine units (bpy, the coordination sites) alternate with three 3,4-dibuthylthiophene units and coordination of the [Re(CO)(3)Cl], [Ru(bPY)(2)](2+), and [Os(bPY)(2)](2+) centers results in the mononuclear species RuTBTBT and OsTBTBT and the binuclear species RuTBTBTRu, OsTBTBTOs, RuTBTBTOs, and ReTBTBTOs. At room temperature, the emitting states obtained by photoexcitation are of (MLCT)-M-3 nature, and vibronic analysis of the emission spectra indicates that they are largely delocalized over the TBTBT ligand. In the binuclear species, the intermetal separation is ca. 17 angstrom, and for RuTBTBTOs, an efficient Ru -> Os excitation transfer takes place, resulting solely in an Os-based emission. The process is ascribed to double-electron transfer (Dexter), as mediated by the TBTBT ligand; a similar conclusion holds for the case of ReTBTBTOs. For RuTBTBTOs, the process is discussed in some detail also with regard to the possibility of disentangling the constituent hole and electron-transfer events. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it