The preparation and characterization of three new complexes, namely [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-4,6-difluoro-benzene)Cl] ([(PtLCl)-Cl-1]), [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-5-triphenylamine-benzene)Cl] ([(PtLCl)-Cl-2]), and [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-5-mesityl-benzene)Cl] ([(PtLCl)-Cl-3]), is reported. All of them are highly luminescent in dilute deaerated dichloromethane solution (phi(lum) = 0.88-0.90, in the yellow-green region; the lambda(max,em) in nm for the monomers are: 562, 561 and 549 for [(PtLCl)-Cl-1], [(PtLCl)-Cl-2] and [(PtLCl)-Cl-3], respectively).[(PtLCl)-Cl-1] is the most appealing, being characterized by a very long lifetime (103.9 mu s) and displaying intense NIR emission in concentrated deaerated solution (phi(lum) = 0.66) with essentially no "contamination" by visible light < 600 nm. This complex allows the fabrication of both yellow-green and deep red/NIR OLEDs; OLED emissions are in the yellow-green (CIE = 0.38, 0.56) and deep red/NIR (CIE = 0.65, 0,34) regions, for [(PtLCl)-Cl-1] 8 wt% (with 11% ph/e EQE) and pure [(PtLCl)-Cl-1] (with 4.3% ph/e EQE), respectively.
Introduction of a triphenylamine substituent on pyridyl rings as a springboard for a new appealing brightly luminescent 1,3-di-(2-pyridyl)benzene platinum(II) complex family / A. Colombo, G. De Soricellis, F. Fagnani, C. Dragonetti, M. Cocchi, B. Carboni, V. Guerchais, D. Marinotto. - In: DALTON TRANSACTIONS. - ISSN 1477-9226. - 51:32(2022 Aug 16), pp. d2dt01792j.12161-d2dt01792j.12169. [10.1039/d2dt01792j]
Introduction of a triphenylamine substituent on pyridyl rings as a springboard for a new appealing brightly luminescent 1,3-di-(2-pyridyl)benzene platinum(II) complex family
A. ColomboPrimo
;G. De SoricellisSecondo
;F. Fagnani;C. Dragonetti
;D. MarinottoUltimo
2022
Abstract
The preparation and characterization of three new complexes, namely [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-4,6-difluoro-benzene)Cl] ([(PtLCl)-Cl-1]), [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-5-triphenylamine-benzene)Cl] ([(PtLCl)-Cl-2]), and [Pt(1,3-bis(4-triphenylamine-pyridin-2-yl)-5-mesityl-benzene)Cl] ([(PtLCl)-Cl-3]), is reported. All of them are highly luminescent in dilute deaerated dichloromethane solution (phi(lum) = 0.88-0.90, in the yellow-green region; the lambda(max,em) in nm for the monomers are: 562, 561 and 549 for [(PtLCl)-Cl-1], [(PtLCl)-Cl-2] and [(PtLCl)-Cl-3], respectively).[(PtLCl)-Cl-1] is the most appealing, being characterized by a very long lifetime (103.9 mu s) and displaying intense NIR emission in concentrated deaerated solution (phi(lum) = 0.66) with essentially no "contamination" by visible light < 600 nm. This complex allows the fabrication of both yellow-green and deep red/NIR OLEDs; OLED emissions are in the yellow-green (CIE = 0.38, 0.56) and deep red/NIR (CIE = 0.65, 0,34) regions, for [(PtLCl)-Cl-1] 8 wt% (with 11% ph/e EQE) and pure [(PtLCl)-Cl-1] (with 4.3% ph/e EQE), respectively.File | Dimensione | Formato | |
---|---|---|---|
94.Dalton Transactions., 2022, 51, 12161-12169.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
1.07 MB
Formato
Adobe PDF
|
1.07 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
final revised.pdf
Open Access dal 17/08/2023
Descrizione: versione accettata dall'editore
Tipologia:
Post-print, accepted manuscript ecc. (versione accettata dall'editore)
Dimensione
1.12 MB
Formato
Adobe PDF
|
1.12 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.