White organic electroluminescent device
An electroluminescent device and device technology, applied in electroluminescent light sources, electro-solid devices, luminescent materials, etc., can solve problems such as the inability to prepare laminate structures and the inability of white light devices to provide emission efficiency.
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Embodiment 1
[0145]
[0146] N, N'-bis(4-bromophenyl)-N,N'-bis(4-n-butylphenyl)-1,4-phenylenediamine (3.3g, 4.8mmol) and 2,2' - Bipyridine (1.9 g, 12 mmol) was dissolved in 132 ml of dehydrated tetrahydrofuran, and then the solution was bubbled with nitrogen to replace the atmosphere of the system with nitrogen. In a nitrogen atmosphere, bis(1,5-cyclooctadiene)nickel(0){Ni(COD) 2} (3.3 g, 12 mmol) was added to the solution, followed by heating to 60° C., and performing a reaction for 3.5 hours with stirring. After the reaction was completed, the reaction mixture was cooled to room temperature (about 25° C.), and dropped into a mixed solution containing 30 ml of 25% ammonia water / 480 ml of methanol / 160 ml of ion-exchanged water, followed by stirring for 1 hour. The obtained precipitate was filtered, and dried under reduced pressure for 2 hours, and dissolved in 150 ml of toluene. Thereafter, 120 g of 1N hydrochloric acid was added to the solution, followed by stirring for 3 hours. The ...
Embodiment 2
[0148] (Synthesis of polymer compound 2)
[0149] [Formula 12]
[0150]
[0151] 22.5 g of Compound A and 17.6 g of 2,2'-bipyridine were charged into a reaction vessel, and then the atmosphere in the reaction system was replaced with nitrogen. 1,500 g of tetrahydrofuran (dehydration catalyst) degassed by bubbling argon in advance was added thereto. Then, 31 g of bis(1,5-cyclooctadiene)nickel(0) was added to the mixed solution, followed by stirring at room temperature for 10 min, and then performing a reaction at 60° C. for 3 hours. The reaction was carried out under nitrogen atmosphere.
[0152] After the reaction was completed, the reaction mixture was cooled, and a mixed solution including 200 ml of 25% ammonia water / 900 ml of methanol / 900 ml of ion-exchanged water was poured thereinto, followed by stirring for about 1 hour. Then, the resulting precipitate was filtered and recovered. This precipitate was dried under reduced pressure, and dissolved in toluene. The tol...
Embodiment 3
[0154] [Formula 13]
[0155]
[0156]
[0157] Under an inert atmosphere, compound B (10000 mg, 14.438 mmol) and compound C (8615 mg, 13.750 mmol) were dissolved in toluene (253 g), and tetrakis(triphenylphosphine)palladium (318 mg, 0.275 mmol) was added to the solution , followed by stirring at room temperature for 10 min. Subsequently, 20% tetraethylammonium hydroxide aqueous solution (49.6 g) was added to the reaction mixture, followed by heating and reflux for 13 hours under heating. After the reaction was completed, phenylboronic acid (2515 mg) was added to the reaction mixture, followed by further reflux under heating for 1 hour. Afterwards, the reaction mixture was cooled to room temperature, the reaction mass was dropped into methanol (2393 ml), and the resulting precipitate was filtered off. The resulting precipitate was washed with methanol and dried under reduced pressure to obtain a solid.
[0158] The resulting solid was dissolved in toluene (598ml), passe...
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