Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device
A technology of iridium metal complexes and phosphorescent materials, applied in the field of organic electroluminescence, which can solve the problems of backwardness and rarely achieve the color purity of dark red and dark green light, and achieve high luminous efficiency and good energy transmission efficiency , The effect that the preparation process is easy to control
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[0067] Example 1: A red light organic electrophosphorescent material iridium metal complex tris[3-(4',6'-dimethylphenyl)-4-phenylcunoline-N,C 2 '] iridium, as shown in the following structural formula:
[0068]
[0069] The method for preparing the iridium metal complex of the red light organic electrophosphorescent material includes the following steps:
[0070] (1) Provide compound A and Grignard reagent B1 represented by the following structural formula:
[0071]
[0072] (2) Synthesis of 1-phenyl-1-(2'-aminophenyl)-2-(2',4'-dimethylphenyl)ethanol
[0073]
[0074] Under the protection of nitrogen, 1.97g (10mmol) of 2-aminobenzophenone (Compound A) was dissolved in 60mL of anhydrous ether, and 1.10g (45.8mmol) of magnesium particles, 6.73g (43.5mmol) 2 , 4-Dimethylbenzyl chloride (Compound D) and 30mL of anhydrous diethyl ether prepared Grignard reagent B1 solution; reflux for 45 minutes after dripping, add excess methanol and ammonium nitrate to quench the reaction, wash with wate...
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[0104] Example 2: A red light organic electrophosphorescent material iridium metal complex tris[3-(5',6'-dimethylphenyl)-4-phenylcinnoline-N,C 2 '] iridium, as shown in the following structural formula:
[0105]
[0106] The method for preparing the iridium metal complex of the red light organic electrophosphorescent material includes the following steps:
[0107] (1) Provide compound A and Grignard reagent B2 represented by the following structural formula:
[0108]
[0109] (2) Synthesis of 1-phenyl-1-(2'-aminophenyl)-2-(2',3'-dimethylphenyl)ethanol
[0110]
[0111] Under the protection of nitrogen, 1.97g (10mmol) of 2-aminobenzophenone was dissolved in 60mL of anhydrous ethyl ether, and 1.06g (43.5mmol) of magnesium particles, 6.73g (43.5mmol) of 2,3-two A solution of Grignard reagent B2 prepared by methylbenzyl chloride and 30 mL of anhydrous ether; reflux for 40 min after the addition is complete, add excess methanol and ammonium nitrate to quench the reaction, wash with water, ...
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[0140] Example 3: A red light organic electrophosphorescent material iridium metal complex tris[3-(3',6'-dimethylphenyl)-4-phenylcunoline-N,C 2 '] iridium, as shown in the following structural formula:
[0141]
[0142] The method for preparing the iridium metal complex of the red light organic electrophosphorescent material includes the following steps:
[0143] (1) Provide compound A and Grignard reagent B3 represented by the following structural formulas:
[0144]
[0145] (2) Synthesis of 1-phenyl-1-(2'-aminophenyl)-2-(2',5'-dimethylphenyl)ethanol
[0146]
[0147] Under the protection of nitrogen, 1.97g (10mmol) of 2-aminobenzophenone was dissolved in 60mL of anhydrous ethyl ether, and 1.10g (45.8mmol) of magnesium particles, 6.73g (43.5mmol) of 2,5-bis A solution of Grignard reagent B3 prepared by methylbenzyl chloride and 30 mL of anhydrous ether; reflux for 50 min after the addition is complete, add excess methanol and ammonium nitrate to quench the reaction, wash with water, ...
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