Primary Photoinduced Processes in Bimetallic Dyads with Extended Aromatic Bridges. Tetraazatetrapyridopentacene Complexes of Ruthenium(II) and Osmium(II). (Articolo in rivista)

Type

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

Label

• Primary Photoinduced Processes in Bimetallic Dyads with Extended Aromatic Bridges. Tetraazatetrapyridopentacene Complexes of Ruthenium(II) and Osmium(II). (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

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

• 10.1021/ic051062z (literal)

Alternative label

• C. Chiorboli, S. Fracasso, M. Ravaglia, F. Scandola, S. Campagna, K. L. Wouters, R. Konduri, and F. M. MacDonnell (2005)
  Primary Photoinduced Processes in Bimetallic Dyads with Extended Aromatic Bridges. Tetraazatetrapyridopentacene Complexes of Ruthenium(II) and Osmium(II).
  in Inorganic chemistry
  (literal)

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

• C. Chiorboli, S. Fracasso, M. Ravaglia, F. Scandola, S. Campagna, K. L. Wouters, R. Konduri, and F. M. MacDonnell (literal)

Pagina inizio

• 8368 (literal)

Pagina fine

• 8378 (literal)

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

• 44 (literal)

Rivista

• Inorganic chemistry (Rivista)

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

• 11 (literal)

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

• 23 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• ISOF-CNR, Sezione di Ferrara, 44100 Ferrara, Italy, Dipartimento di Chimica, UniVersita` di Ferrara, and INSTM, Sezione di Ferrara 44100 Ferrara, Italy, Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, UniVersita` di Messina, and INSTM, Sezione di Messina, 98166 Messina, Italy, and Department of Chemistry and Biochemistry, The UniVersity of Texas at Arlington, Arlington, Texas 76019 (literal)

Titolo

• Primary Photoinduced Processes in Bimetallic Dyads with Extended Aromatic Bridges. Tetraazatetrapyridopentacene Complexes of Ruthenium(II) and Osmium(II). (literal)

Abstract

• The photophysics of the binuclear complexes [(phen)2M(tatpp)M(phen)2]4+, where M ) Ru or Os, phen ) 1,10- phenanthroline, and tatpp ) 9,11,20,22-tetraazatetrapyrido[3,2-a:2¢3¢-c:3¢¢,2¢¢-l:2¢¢¢,3¢¢¢]pentacene, has been studied in acetonitrile and dichloromethane by femtosecond and nanosecond time-resolved techniques. The results demonstrate that complexes of different metals have different types of lowest excited state: a tatpp ligand-centered (LC) triplet in the case of Ru(II); a metal-to-ligand charge-transfer (MLCT) triplet state in the case of Os(II). The excited-state kinetics is strongly solvent-dependent. In the Ru(II) system, the formation and decay of the LC state take place, respectively, in 25 ps and ca. 5 ns in CH3CN and in 0.5 ps and 1.3 ís in CH2Cl2. These solvent effects can be rationalized on the basis of a thermally activated decay of the LC state through the upper MLCT state. In the Os(II) system, the formation and decay of the MLCT state take place, respectively, in 3.8 and 60 ps in CH3CN and in 0.5 and 4 ps in CH2Cl2. These effects are consistent with the solvent sensitivity of the MLCT energy, in terms of driving force and energy-gap law arguments. The relevance of these results for the use of ladder-type aromatic bridges as potential molecular wires is discussed. (literal)

Prodotto di

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Componenti molecolari, supramolecolari o macromolecolari con proprietà fotoniche ed optoelettroniche (PM.P04.004.002) (Modulo)

Autore CNR

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

Incoming links:

Prodotto

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Componenti molecolari, supramolecolari o macromolecolari con proprietà fotoniche ed optoelettroniche (PM.P04.004.002) (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

• Inorganic chemistry (Rivista)