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Aryl-biquinoline iridium-complex organic phosphorescent material, preparation method and applications of aryl-biquinoline iridium-complex organic phosphorescent material

An aryl biquinoline and metal iridium technology, which is applied in the field of aryl biquinoline metal iridium complex organophosphorescent materials and their preparation, can solve the problem that red light organic phosphorescent materials cannot have high efficiency and saturated color at the same time. Purity and excellent lifespan, etc., to achieve the effect of easy purification, improved experimental conditions, and increased synthesis yield

Active Publication Date: 2015-03-25
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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, saturated color purity and good lifespan simultaneously. The aryl biquinoline metal iridium complex organic phosphorescent material; the invention also provides a preparation method and application of an aryl biquinoline metal iridium complex organic electrophosphorescent material

Method used

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  • Aryl-biquinoline iridium-complex organic phosphorescent material, preparation method and applications of aryl-biquinoline iridium-complex organic phosphorescent material
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  • Aryl-biquinoline iridium-complex organic phosphorescent material, preparation method and applications of aryl-biquinoline iridium-complex organic phosphorescent material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: the synthesis of complex L001

[0037] The specific synthetic route is shown in the following structural formula:

[0038]

[0039] Under nitrogen protection system, weigh 22mmol (5.13g) of aryl biquinoline ligand, IrCl 3 ·3H 2 O10mmol (3.52g) was put into the reaction system, a mixed solution of 300ml ethylene glycol ether and 100ml pure water was added, refluxed for 24 hours under the protection of nitrogen, and then cooled to room temperature, a precipitate was precipitated, the precipitate was suction filtered, rinsed with water, and dried Dry. Dichloromethane was used as detergent, and silica gel column chromatography was used to concentrate and precipitate solids to obtain 6.74 g of aryl biquinoline metal iridium bridged ligands with a yield of 92%.

[0040] Weigh 4 mmol (5.33 g) of the aryl biquinoline metal iridium bridge ligand, add 4.5 g of anhydrous sodium carbonate, add 200 ml of ethylene glycol ether to the system, add 16 mmol (1.6 g) of...

Embodiment 2

[0042] Embodiment 2: the synthesis of complex L004

[0043] The specific synthetic route is shown in the following structural formula:

[0044]

[0045] Under nitrogen protection system, weigh 23mmol (5.69g) of aryl biquinoline ligand, IrCl 3 ·3H 2 O10mmol (3.52g) was put into the reaction system, and a mixed solution of 300ml ethylene glycol ether and 100ml pure water was added, under the protection of nitrogen, refluxed for 26 hours, then cooled to room temperature, there was precipitation, the precipitate was suction filtered and rinsed with water ,drying. Dichloromethane was used as a detergent, and silica gel column chromatography was used to concentrate and precipitate a solid to obtain 7.70 g of aryl biquinoline metal iridium bridged ligand with a yield of 93%.

[0046] Weigh 4 mmol (5.76 g) of the aryl biquinoline metal iridium bridge ligand, add 4.5 g of anhydrous sodium carbonate, add 200 ml of ethylene glycol ether to the system, add 32 mmol (3.2 g) of acetyla...

Embodiment 3

[0048] Embodiment 3: the synthesis of complex L009

[0049] The specific synthetic route is shown in the following structural formula:

[0050]

[0051] Under nitrogen protection system, weigh 24mmol (7.09g) of aryl biquinoline ligand, IrCl 3 ·3H 2 O10mmol (3.52g) was put into the reaction system, a mixed solution of 300ml ethylene glycol ether and 100ml pure water was added, refluxed for 25 hours under the protection of nitrogen, and then cooled to room temperature, a precipitate was precipitated, the precipitate was suction filtered, rinsed with water, and dried Dry. Dichloromethane was used as detergent, and silica gel column chromatography was used to concentrate and precipitate solids to obtain 8.82 g of aryl biquinoline metal iridium bridged ligands with a yield of 90%.

[0052] Weigh 4 mmol (6.53 g) of the aryl biquinoline metal iridium bridge ligand, add 4.5 g of anhydrous sodium carbonate, add 200 ml of ethylene glycol ether to the system, add 16 mmol (1.6 g) of...

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Abstract

The invention provides an aryl-biquinoline iridium-complex organic phosphorescent material, a preparation method and an application of the aryl-biquinoline iridium-complex organic phosphorescent material, and solves the problems that the existing iridium complex red organic phosphorescent material can not have high efficiency, high saturated color purity and long service life at the same time. The complex is the organic phosphorescent material with a basic framework structure being the aryl-biquinoline iridium complex. The invention also provides the preparation method of the aryl-biquinoline iridium-complex organic electro-phosphorescent material, and the preparation method is characterized in that the synthesis process is simple, the purification is easy, the cost is low, and the industrial synthesis yield is greatly increased. The aryl-biquinoline iridium complex provided by the invention is applied to an organic electroluminescent material and has high luminous efficiency, so that the complex can be used as a luminescent material, a main luminescent material or a transmission material and used in electroluminescent devices.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, and in particular relates to an organic phosphorescent material of an aryl biquinoline metal iridium complex and a preparation method and application thereof. 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 mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
Inventor 马晓宇王辉李文军
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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