1252660-22-2

Upstream product

• 23048-11-5 2-(4-hydroxyphenyl)-5-(p-tolyl)-1,3,4-oxadiazole 
• 94847-10-6 N-(6-bromohexyl)carbazole 

Downstream Products

• 1402660-08-5 9-(6-(4-(5-p-tolyl-1,3,4-oxadiazol-2-yl)phenoxy)hexyl)-9H-carbazole-3,6-dicarbaldehyde 
• 1402660-12-1 C₅₉H₄₅N₉O₂ 

Relevant academic research and scientific papers

Bipolar-transporting dinuclear europium(III) complexes involving carbazole and oxadiazole units: Synthesis, photophysical and electroluminescent properties

A class of bipolar-transporting dinuclear europium (III) complexes involving a carbazole and a oxadizaole fragments was synthesized and characterized by elemental analysis, infrared spectro-scopy and thermal analyses. Compared to the mononuclear europium (III) tris(dibenzoylmethane) (1,10-phenanthroline), these dinuclear europium (III) complexes presented better thermal stability, and similar UV-vis absorption and photoluminescence spectra in dichloromethane. Two intense UV-vis absorption bands at around 282 nm and 352 nm, and a characteris-tical red emission peak at 614 nm from the 5D0 → 7F2 transition of the central Eu3+ ions were observed under photo-excitation, respectively. Using the Eu2(DBM)6(FPhOXD6CzPhen2) as emitters and a blend of poly (vinylcarbazole) and 2-(4-biphenyl)-5-(4-tert- butylphenyl)-1,3,4-oxadiazole as a host matrix, the single emitting-layer polymer light-emitting devices exhibited saturated red electrolumine- scent emission from Eu3+ ion at dopant concentrations from 1 wt % to 8 wt %.

Synthesis, optophysical and electrochemical properties of bipolar-transporting europium(III) complexes with carbazole and oxadiazole units

A series of bipolar-transporting europium(III) complexes containing carbazole and oxadiazole units were synthesized and characterized. Two intense UV absorption bands at around 286 nm and 352 nm, and sharply red emissions peaked at 614 nm were observed for these europium complexes in dichloromethane. Importantly, the bipolar-transporting europium(III) complexes exhibited higher thermal stability, more intense UV absorption at 286 nm and twofold increased photoluminescent quantum yield compared to the reported red chromophore of tri(dibenzoylmethane) (1,10-phenanthroline) europium(III).