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Phosphorescent compound and preparation method and application thereof

Inactive Publication Date: 2020-04-24
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex synthesis process of phosphorescent materials, time-consuming and low lifespan, the further development of phosphorescent materials is imminent

Method used

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  • Phosphorescent compound and preparation method and application thereof
  • Phosphorescent compound and preparation method and application thereof
  • Phosphorescent compound and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The preparation steps of phosphorescent compound 1 are:

[0062]

[0063] 1) Under nitrogen protection system, weigh A-001 (60mmol), IrC1 3 ·3H 2 O (25mmol) was put into the reaction system, a mixed solution of 150mL ethylene glycol ether and 70mL purified water was added, under nitrogen protection, the temperature was raised to 140°C and stirred for 24 hours. The reaction was monitored by TLC, and the temperature was lowered until the reaction of the raw materials was completed. Direct suction filtration gave a yellow solid, which was washed with 100 mL of ethanol and then with 100 mL of petroleum ether, and dried to obtain intermediate B-001 (10.7 g, yield 69%).

[0064] 2) Under a nitrogen protection system, weigh the intermediate B-001 (8mmol), add silver trifluoromethanesulfonate (24mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, and react at room temperature for 24 Hour. TLC monitoring showed that the reaction of the raw mat...

Embodiment 2

[0069] The preparation steps of phosphorescent compound 10 are:

[0070]

[0071] 1) Under nitrogen protection system, weigh A-010 (60mmol), IrC1 3 ·3H 2 O (25mmol) was put into the reaction system, a mixed solution of 150mL ethylene glycol ether and 70mL purified water was added, under nitrogen protection, the temperature was raised to 140°C and stirred for 24 hours. The reaction was monitored by TLC, and the temperature was lowered until the reaction of the raw materials was completed. Direct suction filtration gave a yellow solid, which was washed with 100 mL of ethanol and then with 100 mL of petroleum ether, and dried to obtain intermediate B-010 (19.4 g, yield 80%).

[0072] 2) Under nitrogen protection system, weigh intermediate B-010 (8mmol), add silver trifluoromethanesulfonate (24mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, under nitrogen protection, React at room temperature for 24 hours. TLC monitoring showed that the reac...

Embodiment 3

[0077] The preparation steps of phosphorescent compound 28 are:

[0078]

[0079] 1) Under nitrogen protection system, weigh A-028 (60mmol), IrC1 3 ·3H 2 O (25mmol) was put into the reaction system, a mixed solution of 150mL ethylene glycol ether and 70mL purified water was added, under nitrogen protection, the temperature was raised to 140°C and stirred for 24 hours. The reaction was monitored by TLC, and the temperature was lowered until the reaction of the raw materials was completed. Direct suction filtration gave a yellow solid, which was first washed with 80 mL of ethanol, then washed with 120 mL of petroleum ether, and dried to obtain intermediate B-028 (10.0 g, yield 77%).

[0080] 2) Under a nitrogen protection system, weigh the intermediate B-028 (8mmol), add silver trifluoromethanesulfonate (24mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, and react at room temperature for 24 Hour. TLC monitoring showed that the reaction of t...

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Abstract

The invention discloses a phosphorescent compound. The molecular structural general formula of the phosphorescent compound is shown in the specification. After the phosphorescent compound provided bythe invention is used for an organic light-emitting device, the light-emitting efficiency of the device is improved, and the service life is long. According to the preparation method of the phosphorescent compound, the raw materials are easy to obtain, the synthesis process is simple, and the product yield is high. The phosphorescent compound provided by the invention can be applied to an OLED luminescent device, and the voltage, efficiency and service life of the phosphorescent compound are improved compared with those of a known OLED material.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and relates to a phosphorescent compound, a preparation method thereof and an application in preparing organic electroluminescent devices. Background technique [0002] OLED is a hole and electron double-injection light-emitting device, which directly converts electrical energy into light energy of organic semiconductor material molecules. Compared with traditional CRT, LCD, PDP and other display devices, OLED takes into account all the advantages of existing displays, and has Own unique advantages, not only high brightness, high contrast, high definition, wide viewing angle, wide color gamut, etc. to achieve high-quality images, but also has the characteristics of ultra-thin, ultra-light, low driving voltage, low power consumption, wide temperature, etc. To meet the needs of portable devices such as portability, power saving, and outdoor operation; while self-illumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54H01L51/50
CPCC07F15/0033C09K11/06C09K2211/185C09K2211/1011C09K2211/1029C09K2211/1044C09K2211/1048C09K2211/1033C09K2211/1037C09K2211/1088C09K2211/1092H10K85/342H10K50/12H10K50/11
Inventor 王永光汪康于丹阳张思铭刘锟张颖马晓宇
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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