Synthesis and Application of a Novel Iridium Metal Complex Phosphorescent Material

A technology of iridium metal complexes and metal complexes, applied in the direction of luminescent materials, indium organic compounds, platinum group organic compounds, etc., can solve the problem that red light organic phosphorescent materials cannot have high efficiency, saturated color purity and excellent life at the same time And other issues

Active Publication Date: 2019-02-01
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing metal iridium complex red light organic phosphorescent materials cannot simultaneously have high efficiency, saturated color purity and good lifespan, the invention provides a kind of high efficiency, saturated color purity and good lifespan simultaneously. The oxazole metal iridium complex organic phosphorescent material; the present invention also provides a preparation method and application of an oxazole novel iridium metal complex metal iridium complex organic electrophosphorescent material

Method used

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  • Synthesis and Application of a Novel Iridium Metal Complex Phosphorescent Material
  • Synthesis and Application of a Novel Iridium Metal Complex Phosphorescent Material
  • Synthesis and Application of a Novel Iridium Metal Complex Phosphorescent Material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Synthesis of intermediate 2-(3-isoquinolyl)-6-methylbenzoxazole (A-1):

[0090]

[0091] Under the nitrogen protection system, put 25mmol of polyphthalamide (PPA) into the reaction system, raise the temperature to 100°C, add 25mmol of isoquinoline-3-carboxylic acid, 25mmol of 6-amino-m-cresol, At the same time, it was added to the above reaction solution, continued to heat up to 180°C, and reacted for 4 hours. After the reaction was completed, it was cooled, extracted with dichloromethane, and the solvent was evaporated by a rotary evaporator to obtain 2-(3-isoquinolinyl)- 6-methylbenzoxazole (A-1) 15.75mmol, yield 63%.

Embodiment 2

[0093] Intermediates A-2 and A-4 were synthesized according to the preparation method of intermediate A-1 above, and Table 1 is a summary of the reaction substances, generated substances and yields of Example 2 of the present invention.

[0094] Table 1 embodiment 2 reaction substance, generated substance and productive rate summary

[0095]

Embodiment 3

[0097] Synthesis of intermediate phenylpyridine metal iridium bridged ligand (B-1):

[0098]

[0099] Under a nitrogen protection system, weigh 22 mmol of 4-methyl-2,5-diphenylpyridine, iridium trichloride (IrCl 3 ·3H 2 O) Put 10mmol into the reaction system, add a mixed solution of 300ml ethylene glycol ethyl ether and 100ml pure water, reflux for 24 hours under nitrogen protection, then cool to room temperature, a precipitate precipitates, filter the precipitate with suction, rinse with water, and dry. Using dichloromethane as a detergent, silica gel column chromatography, concentrated and precipitated solids to obtain a novel iridium metal complex metal iridium bridging ligand (B-1) of oxazoles (9.2 mmol, 92%).

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Abstract

The invention provides a novel iridium metal complex, a preparation method thereof, and an electroluminescence device. The novel iridium metal complexes provided by the present invention adjust the wavelength of the compound by selecting specific heterocyclic ligands for binding, and the obtained organometallic compounds can improve the luminous efficiency of the device after being used in organic electroluminescent devices, and use long life.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, in particular to a preparation method and application of a benzoxazole metal iridium complex organic phosphorescent material. Background technique [0002] Due to the advantages of self-emission, fast response, high brightness, flexibility and rollability, organic electroluminescent devices have attracted much attention in the field of new generation large-area flat panel displays and semiconductor solid-state lighting sources. However, red organic phosphorescent materials must be used to make white organic electroluminescent devices. However, due to the low luminous efficiency and color purity of red organic phosphorescent materials, the development of white organic electroluminescent devices is obviously lagging behind. Therefore, in recent years, people have devoted themselves to the research of red light organic phosphorescent materials. The most studied red-light organic phosp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342
Inventor 张成成马晓宇李贺赵贺孙锋毕岩
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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