Novel organic metal iridium complex, preparation method thereof, and organic electroluminescent device containing metal iridium complex

An organic metal, iridium complex technology, applied in indium organic compounds, platinum group organic compounds, electric solid devices, etc., can solve the problems of low life, long time, complex synthesis process, etc.

Inactive Publication Date: 2020-02-14
JILIN OPTICAL & ELECTRONICS MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complex synthesis process of phosphorescent materials, which takes a long time and has a short lifespan, in view of 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 doping materials for the light-emitting layer to achieve The comprehensive characteristics of high efficiency, long life and low voltage of the device, therefore, the further development of phosphorescent materials is imminent

Method used

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  • Novel organic metal iridium complex, preparation method thereof, and organic electroluminescent device containing metal iridium complex
  • Novel organic metal iridium complex, preparation method thereof, and organic electroluminescent device containing metal iridium complex
  • Novel organic metal iridium complex, preparation method thereof, and organic electroluminescent device containing metal iridium complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The synthesis of compound 4, structural formula is as follows:

[0071]

[0072] The first step: the preparation of intermediate 4-A

[0073]

[0074] (1) Synthesis method of intermediate 4-A: Add raw material 4-A-1 (0.07mol) into the reactor, 300mL toluene, 150mL ethanol, 150mL deionized water, nitrogen protection, stir for 30 minutes, and then add raw materials respectively 4-A-2 (0.084mol) and the catalyst tetrakistriphenylphosphine palladium (0.0007mol) and potassium carbonate (0.14mol) were heated to 90°C for 24 hours.

[0075] (2) Post-treatment process of intermediate 4-A: TLC monitoring until the reaction is complete. The temperature was lowered, the liquid was separated at rest, and the water layer was separated to keep the toluene layer. Add another 150 mL of water to wash the toluene layer once, separate the layers, dry the toluene layer, spin dry the toluene to obtain a dark solid. After passing through the silica gel column, first wash out the impu...

Embodiment 2

[0085] The synthesis of compound 19 has the following structural formula:

[0086]

[0087] The first step: the synthesis of intermediate 19-A

[0088]

[0089] (1) Synthesis method of intermediate 19-A: Add raw material 19-A-1 (0.049mol) into the reactor, 300mL toluene, 150mL ethanol, 150mL deionized water, nitrogen protection, stir for 30 minutes, and then add raw materials respectively 19-A-2 (0.0588 mol) and catalyst tetrakistriphenylphosphine palladium (0.00049 mol) and potassium carbonate (0.098 mol), heated to 90°C for 24 hours.

[0090] (2) Post-treatment process of intermediate 19-A: TLC monitoring until the reaction is complete. The temperature was lowered, the liquid was separated at rest, and the water layer was separated to keep the toluene layer. Add another 150 mL of water to wash the toluene layer once, separate the layers, dry the toluene layer, spin dry the toluene to obtain a dark solid. After passing through the silica gel column, first use 400mL o...

Embodiment 3

[0100] The synthesis of compound 20 has the following structural formula:

[0101]

[0102] The first step: the synthesis of intermediate 20-A

[0103]

[0104] (1) Synthesis method of intermediate 20-A: Add raw material 20-A-1 (0.049mol) into the reactor, 300mL toluene, 150mL ethanol, 150mL deionized water, nitrogen protection, stir for 30 minutes, and then add the raw materials respectively 20-A-2 (0.0588mol) and catalyst tetrakistriphenylphosphine palladium (0.00049mol) and potassium carbonate (0.098mol), heated to 90°C for 24 hours.

[0105] (2) Post-treatment process of intermediate 20-A: TLC monitoring until the reaction is complete. The temperature was lowered, the liquid was separated at rest, and the water layer was separated to keep the toluene layer. Add another 150 mL of water to wash the toluene layer once, separate the layers, dry the toluene layer, spin dry the toluene to obtain a dark solid. After passing through the silica gel column, first wash out t...

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Abstract

The invention discloses a novel organic metal iridium complex, a preparation method thereof, and an organic electroluminescent device containing the metal iridium complex. The structural general formula of the novel organic metal iridium complex is shown in the specification. According to the novel metal iridium complex provided by the invention, the compound wavelength is adjusted by selecting specific heterocyclic ligand for combination, and after the obtained organic metal compound is used in an organic electroluminescent device, the light-emitting efficiency of the organic electroluminescent device is improved, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent diodes, and more specifically relates to a novel organometallic iridium complex, a preparation method thereof and an organic electroluminescent device containing the metal iridium complex. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54H01L51/30H01L51/46
CPCC07F15/0033C09K11/06C09K2211/185H10K85/342H10K50/11
Inventor 王永光赵贺汪康张鹤孙峰张思铭马晓宇
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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