Synthesizing and application of novel iridium metal complex phosphorescent material

A new type of iridium metal complex, applied in 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

Active Publication Date: 2016-08-10
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 present invention provides a kind of high efficiency, ...

Method used

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  • Synthesizing and application of novel iridium metal complex phosphorescent material
  • Synthesizing and application of novel iridium metal complex phosphorescent material
  • Synthesizing and application of novel iridium metal complex phosphorescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Synthesis of intermediate 2-(3-isoquinolyl)-6-methylbenzothiazole (A-1):

[0063]

[0064] Under a nitrogen protection system, put 25 mmol of polyphthalamide (PPA) into the reaction system, raise the temperature to 100°C, add 25 mmol of isoquinoline-3-carboxylic acid, 25 mmol 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-methylbenzothiazole (A-1) 15.75mmol, yield 63%.

Embodiment 2

[0066] 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.

[0067] Table 1 embodiment 2 reaction substance, generated substance and productive rate summary

[0068]

Embodiment 3

[0070] Intermediate Synthesis of phenylpyridine metal iridium bridged ligand (B-1):

[0071]

[0072] 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 detergent, silica gel column chromatography, concentration and precipitation of solids, to obtain thiazole-based novel iridium metal complex metal iridium bridging ligand (B-1) (9.2 mmol, 92%).

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PUM

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Abstract

The invention provides a novel iridium metal complex and a preparation method thereof and an electroluminescent device. According to the novel iridium metal complex, a specific heterocyclic ligand combination is selected, the wavelength of a compound is adjusted, and an obtained organic metal compound is used for an organic electroluminescent device, so that the luminous efficiency of the device is improved, and the service life is long.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, in particular to a preparation method and application of a benzothiazole 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 pho...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342H10K50/00
Inventor 王士凯马晓宇李贺赵贺孙锋毕岩
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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