Abstract:A series of phosphorescent Pt(II) complexes containing a bis-N-heterocyclic carbene (NHC)-pincer-type ligand and a monodentate ancillary ligand, [Pt(CNHC^CAr^CNHC)L] (where L = chloride, 3,5-bis(trifluoromethyl)pyrazolate (Pz), cyanide or isocyanoborates (CNBPh3 and CNB(C6F5)3),...
“…A hyperphosphorescent device with IPr t BuPt as a dopant sensitizer and ν-DABNA as a terminal emitter is demonstrated to show a maximum EQE of 33.59% and color coordinates of (0.124, 0.148). It also revealed very mild efficiency roll-offs comparable to other hyper-OLED devices in the literature, 7,8,15,23,24,30–38 together with a high max. brightness of ∼30 000 cd m −2 .…”
Pt(II) dicarbene pincer complexes have been explored as deep-blue phosphors with narrowband emissions. Generally, they form excimers easily and their relatively long emission lifetimes also limit their applications as OLED...
“…A hyperphosphorescent device with IPr t BuPt as a dopant sensitizer and ν-DABNA as a terminal emitter is demonstrated to show a maximum EQE of 33.59% and color coordinates of (0.124, 0.148). It also revealed very mild efficiency roll-offs comparable to other hyper-OLED devices in the literature, 7,8,15,23,24,30–38 together with a high max. brightness of ∼30 000 cd m −2 .…”
Pt(II) dicarbene pincer complexes have been explored as deep-blue phosphors with narrowband emissions. Generally, they form excimers easily and their relatively long emission lifetimes also limit their applications as OLED...
“…N-heterocyclic carbine (NHC) Pt(II) complexes have been studied extensively due to the excellent virtues of Pt-C* (NHC) bonds. [10][11][12][13] As shown in the investigation by Strassner and co-workers, for the unsubstituted N-heterocyclic carbine (NHC) Pt(II) complex, the phosphorescence quantum yield was only 7%. 14 Changing the substituent in the 4-position can cause a significant influence on the observed quantum yield and on the decay lifetime.…”
Triplet energy potential surfaces, for phosphorescent material, play a predominate role in determining the radiative and non-radiative decay processes. It is significant and meaningful for providing the promising strategy to...
“…The incorporation of N-heterocyclic carbene (NHC) donors into pincer ligands continues to provide new organometallic complexes with exciting catalytic 1 and optical 2 properties. Since emerging as isolable species, NHC ligands or their pro-ligands have increasingly competed with traditional phosphine ligands, typically providing increased though variable σ-donation, low π-acidity and bespoke steric profiles.…”
The pro-ligands 1,8-bis(di-R-phosphinomethyl)-2,3-dihydroperimidine (RH2Pm, R = phenyl, cyclohexyl) react with [RhCl(CE)(PPh3)2] (E = O, S) to afford the bimetallic complexes [RhCl(CE)(-RH2Pm)]2 (E = O, S). Upon heating, these species undergo...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.