Synthesis and characterization of 9,10-bis(2-phenyl-1,3,4-oxadiazole) derivatives of anthracene: Efficient n-type emitter for organic light-emitting diodes

High‐Performance Hybrid White OLEDs with Ultra‐Stable Emission Color and Small Efficiency Roll‐Off Achieved by Incorporating a Deep‐Blue Fluorescent Neat Film

“…Compounds 1 – 5 were prepared by the reported methods. [ 9a,10a,12 ] DMAC‐TAn‐BI, DPAC‐TAn‐BI, DMAC‐TAn‐PI, and DPAC‐TAn‐PI were synthesized by Suzuki couplings of 3a and 3b with 4 and 5 in good yields. All of these new luminogens were purified by column chromatography and then recrystallization.…”

Synthesis and optical properties of novel pyrido[1,2-a]benzimidazole-containing 1,3,4-oxadiazole derivatives

“…2,5-diaryl-1,3,4-oxadiazoles possess good thermal stabilities and usually have high photoluminescence quantum yields [1]. Either polymers or small molecules of this kind have been widely used as electron-transporting materials or electroluminescence (EL) materials in organic light emitting diodes (OLEDs) [2][3][4][5][6][7][8][9][10][11][12]. In recent years, many oxadiazole-containing two-photon absorption (TPA) molecules have been designed and investigated [13][14][15][16].…”

Differentiation of isomeric para‐ and meta‐substituted 2,5‐diphenyl‐1,3,4‐oxadiazole derivatives of anthracene by electrospray ionization tandem mass spectrometry

“…[8,9] Reddy et al reported previously the synthesis of anthracene/oxadiazole hybrids which function as n-type green emitters in a simple bilayer device. [10] As a part of ongoing research towards developing molecules with high blue electroluminescence efficiency, one of us has reported the synthesis and characterization of a new series of para-and meta-substituted 2,5-diphenyl-1,3,4-oxadiazole derivatives of anthracene. [11] A literature survey showed that few reports are available on mass spectral fragmentation of oxadiazole derivatives.…”