Fluorene-based Tröger’s base analogues: Potential electroluminescent materials

Recent Developments in Synthetic Chemistry, Chiral Separations, and Applications of Tröger's Base Analogues

“…Very recently, fluorene derivatives such as (AE)-46 were reported to show efficient photo-and electroluminescence. Organic light-emitting diodes (OLED) fabricated with (AE)-46 as emitters demonstrated high brightness, high efficiency, and low turn-on voltage [81]. Chirality is an important property of Trçgers base, but most of the reported studies deal with racemic derivatives.…”

Crystal structure of 1,1′-diformyl-4,4′-(6H,12H-5,11-methano-dibenzo[b,f][11,5]diazocine-2,8-diyl)dibenzene, C29H22N2O2

“…Since then, various of TB derivatives were synthesized and applied in the eld of molecular recognition [2], chiral ligands [3][4][5], DNA probes [6,7], stereo selective catalysis [8][9][10][11][12], drug development [13,14], CO 2 capture [15,16], bioorganic chemistry [17][18][19], electroluminescent materials [20,21] and supra molecular chemistry [22] in the last two decades. Their wide range of applications is based on their huge rigidity, V-shaped twisted con guration, N-central chirality and C 2 -symmetry.…”

Bifunctional organic materials for OLEDs based on Tröger’s base: Subtle structural changes and significant differences in electroluminescence

“…We surmised that the V-shaped Tröger's bases (TBs) that are rigid, chiral and C 2 -symmetric may be diligently functionalized to sequester both emission as well as charge-transport properties to facilitate device fabrication. Indeed, TB-based emissive materials with annulation of fluorene moiety have been reported by Tao and co-workers [5]. Further, the TB scaffold has been exploited in diverse applications, e.g., http://dx.doi.org/10.1016/j.orgel.2014.10.030 1566-1199/Ó 2014 Elsevier B.V. All rights reserved.…”