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Organic metal iridium complex as well as preparation method and application thereof

A technology of iridium complexes and organometallics, which is applied in the fields of indium organic compounds, platinum group organic compounds, organic chemistry, etc., can solve the problems of low lifespan, complicated and time-consuming synthesis process of phosphorescent materials, etc., and achieve long service life, electric High luminescence efficiency, simple and efficient process

Inactive Publication Date: 2020-10-16
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, because the synthesis process of phosphorescent materials is relatively complicated, time-consuming, and life-span is low, according to the current industrial application requirements of OLED devices and the photoelectric characteristics of OLED devices, it is necessary to choose more suitable and high-performance dopant materials for the light-emitting layer.

Method used

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  • Organic metal iridium complex as well as preparation method and application thereof
  • Organic metal iridium complex as well as preparation method and application thereof
  • Organic metal iridium complex as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052]

[0053] (1) Synthesis of intermediate b-2: Add reactant a-2 (56mmol) and iridium trichloride (24mmol) into a three-necked flask, then add 200mL of ethylene glycol ether and 100mL of water, and raise the temperature under nitrogen protection The reaction was stirred at 140°C for 24 hours. After the reaction was completed, the temperature was lowered, and the yellow solid was obtained by direct suction filtration, which was first washed with 100 mL of ethanol, and then washed with 100 mL of petroleum ether, and dried to obtain intermediate b-2 (10.8 g, yield 80%).

[0054] (2) Synthesis of intermediate c-2: Weigh intermediate b-2 (9mmol), add silver trifluoromethanesulfonate (27mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, nitrogen Under protection, react at room temperature for 24 hours. TLC monitoring showed that the reaction of the raw materials was basically completed, and a dark solution was obtained by suction filtration, whic...

Embodiment 2

[0059]

[0060] (1) Synthesis of intermediate b-9: Add reactant a-2 (56mmol) and iridium trichloride (24mmol) into a three-necked flask, then add 200mL of ethylene glycol ether and 100mL of water, and raise the temperature under nitrogen protection The reaction was stirred at 140°C for 24 hours. After the reaction was completed, the temperature was lowered, and the yellow solid was obtained by direct suction filtration, which was first washed with 100 mL of ethanol, then washed with 100 mL of petroleum ether, and dried to obtain intermediate b-9 (12.2 g, yield 81%).

[0061] (2) Synthesis of intermediate c-9: Weigh intermediate b-9 (9mmol), add silver trifluoromethanesulfonate (27mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, nitrogen Under protection, react at room temperature for 24 hours. TLC monitoring showed that the reaction of the raw materials was basically completed, and the dark solution was obtained by suction filtration, and sp...

Embodiment 3

[0066]

[0067] (1) Synthesis of intermediate b-22: Add reactant a-22 (56mmol) and iridium trichloride (24mmol) into a three-necked flask, then add 200mL of ethylene glycol ether and 100mL of water, and raise the temperature under nitrogen protection The reaction was stirred at 140°C for 24 hours. After the reaction was completed, the temperature was lowered and filtered with suction to obtain 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-22 (14.7 g, yield 83%).

[0068] (2) Synthesis of intermediate c-22: Weigh intermediate b-22 (9mmol), add silver trifluoromethanesulfonate (27mmol), then add 100mL of dichloromethane to the system, add 40mL of isopropanol, nitrogen Under protection, react at room temperature for 24 hours. TLC monitoring showed that the reaction of the raw materials was basically completed, and a dark solution was obtained by suction filtration, and spin-dried to obtain i...

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Abstract

The invention discloses an organic metal iridium complex. The structural general formula is shown in the specification. The invention further provides a preparation method of the organic metal iridiumcomplex, the process is simple and efficient, the purity of the prepared product is high, the wavelength of the compound is adjusted by selecting the specific heterocyclic complex, the electroluminescent efficiency is high, the service life is long, meanwhile, the material is easy to prepare and purify, and the market prospect is very wide.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent diodes, and relates to an organometallic iridium complex, a preparation method thereof and an application in preparing organic electroluminescent devices. Background technique [0002] Organic electroluminescence (referred to as OLED) and related research As early as 1963, Pope et al. first discovered the electroluminescence phenomenon of organic compound single crystal anthracene. In 1987, Kodak Corporation of the United States made an amorphous device by evaporating organic small molecules, which reduced the driving voltage to within 20V. 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 at the same time has its own uniqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54
CPCC07F15/0033C09K11/06C09K2211/185H10K85/40H10K85/342H10K50/12H10K50/11
Inventor 马晓宇王永光汪康陈振生王铁姚明明
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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