http://www.cnr.it/ontology/cnr/individuo/prodotto/ID48159
The Role of Substituents on Functionalized 1,10-Phenanthroline in Controlling the Emission Properties of Cationic Iridium(III) Complexes of Interest for Electroluminescent Devices (Articolo in rivista)
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- Label
- The Role of Substituents on Functionalized 1,10-Phenanthroline in Controlling the Emission Properties of Cationic Iridium(III) Complexes of Interest for Electroluminescent Devices (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/ic700414z (literal)
- Alternative label
Claudia Dragonetti; Luigi Falciola; Patrizia Mussini; Stefania Righetto; Dominique Roberto; Renato Ugo; Adriana Valore;Filippo De Angelis; Simona Fantacci; Antonio Sgamellotti; Miguel Ramon; Michele Muccini (2007)
The Role of Substituents on Functionalized 1,10-Phenanthroline in Controlling the Emission Properties of Cationic Iridium(III) Complexes of Interest for Electroluminescent Devices
in Inorganic chemistry
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Claudia Dragonetti; Luigi Falciola; Patrizia Mussini; Stefania Righetto; Dominique Roberto; Renato Ugo; Adriana Valore;Filippo De Angelis; Simona Fantacci; Antonio Sgamellotti; Miguel Ramon; Michele Muccini (literal)
- Pagina inizio
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- http://pubs.acs.org/doi/abs/10.1021/ic700414z#ic700414zAF5 (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
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- Dipartimento di Chimica Inorganica, Metallorganica e Analitica, Dipartimento di Chimica Fisica ed Elettrochimica, Centro di Eccellenza CIMAINA dell'Università di Milano, Istituto di Scienze e Tecnologie Molecolari, CNR, and UdR dell'INSTM di Milano, via Venezian 21, 20133 Milano, Italy
Istituto di Scienze e Tecnologie Molecolari, CNR, c/o Dipartimento di Chimica, Università di Perugia, via Elce di Sotto 8, I-06123 Perugia, Italy
Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via P. Gobetti 101, I-40129 Bologna, Italy (literal)
- Titolo
- The Role of Substituents on Functionalized 1,10-Phenanthroline in Controlling the Emission Properties of Cationic Iridium(III) Complexes of Interest for Electroluminescent Devices (literal)
- Abstract
- The photophysical and electrochemical properties of the novel complexes [Ir(ppy)2(5-X-1,10-phen)][PF6] (ppy = 2-phenylpyridine, phen = phenanthroline, X = NMe2, NO2), [Ir(pq)2(5-X-1,10-phen)][PF6] (pq = 2-phenylquinoline, X = H, Me, NMe2, NO2), [Ir(ppy)2(4-Me,7-Me-1,10-phen)][PF6], [Ir(ppy)2(5-Me,6-Me-1,10-phen)][PF6], [Ir(ppy)2(2-Me,9-Me-1,10-phen)][PF6], and [Ir(pq)2(4-Ph,7-Ph-1,10-phen)][PF6] have been investigated and compared with those of the known reference complexes [Ir(ppy)2(4-Me or 5-H or 5-Me-1,10-phen)][PF6] and [Ir(ppy)2(4-Ph,7-Ph-1,10-phen)][PF6], showing how the nature and number of the phenanthroline substituents tune the color of the emission, its quantum yield, and the emission lifetime. It turns out that the quantum yield is strongly dependent on the nonradiative decay. The geometry, ground state, electronic structure, and excited electronic states of the investigated complexes have been calculated on the basis of density functional theory (DFT) and time-dependent DFT approaches, thus substantiating the electrochemical measurements and providing insight into the electronic origin of the absorption spectra and of the lowest excited states involved in the light emission process. These results provide useful guidelines for further tailoring of the photophysical properties of ionic Ir(III) complexes. (literal)
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