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Organic red phosphorescence luminescent material and preparation method and application thereof

A technology of red phosphorescence and luminescent materials, which is applied in the fields of luminescent materials, organic chemistry, chemical instruments and methods, etc. It can solve the problems of material properties that need to be improved and high requirements for synthesis processes, so as to improve luminescent performance, luminous efficiency, and stability Effect

Inactive Publication Date: 2017-05-03
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the deficiencies in the prior art above, the object of the present invention is to provide organic red phosphorescent materials and their preparation methods and applications, aiming to solve the problems of high requirements for the synthesis process of existing phosphorescent materials and the need for improvement in material properties

Method used

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  • Organic red phosphorescence luminescent material and preparation method and application thereof
  • Organic red phosphorescence luminescent material and preparation method and application thereof
  • Organic red phosphorescence luminescent material and preparation method and application thereof

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Experimental program
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Embodiment 1

[0050] As the specific embodiment 1 of above-mentioned preparation method, comprise steps:

[0051] A, under nitrogen protection, 1-chloroisoquinoline (4.89g, 30mmol), 4-(trifluorothiomethyl)-phenylboronic acid (7.33g, 33mmol), Pd (pph 3 ) 4 (346mg, 0.3mmol), sodium carbonate (9.5g, 90mmol) and water (45ml) were added to 100ml of toluene, and heated to reflux overnight; after the reaction was cooled to room temperature, the combined organic phase was washed with water and extracted with ethyl acetate, and the Organic solvent, separated by column chromatography to obtain compound 2 as white powder;

[0052] B. Under nitrogen protection, compound 2 (1g, 3.3mmol), iridium trichloride trihydrate (0.53g, 1.5mmol) and water (3.3ml) were added to 10ml of ethylene glycol monoethyl ether, and heated at 110°C overnight; After the reaction was cooled to room temperature, it was washed with water and extracted with dichloromethane, and separated by column chromatography to obtain compou...

Embodiment 2

[0060] As a specific embodiment 2 of the above-mentioned preparation method, it includes steps:

[0061] A, under nitrogen protection, 1-chloroisoquinoline (4.89g, 30mmol), 4-(trifluorooxymethyl)-phenylboronic acid (6.80g, 33mmol), Pd (pph 3 ) 4 (346mg, 0.3mmol), sodium carbonate (9.5g, 90mmol) and water (45ml) were added to 100ml of toluene, and heated to reflux overnight; after the reaction was cooled to room temperature, the combined organic phase was washed with water and extracted with ethyl acetate, and the Organic solvent, separated by column chromatography to obtain compound 2 as white powder;

[0062] B. Under nitrogen protection, compound 2 (1g, 3.3mmol), iridium trichloride trihydrate (0.53g, 1.5mmol) and water (3.3ml) were added to 10ml of ethylene glycol monoethyl ether, and heated at 110°C overnight; After the reaction was cooled to room temperature, it was washed with water and extracted with dichloromethane, and separated by column chromatography to obtain co...

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Abstract

The invention discloses an organic red phosphorescence luminescent material and a preparation method and application thereof. According to the organic red phosphorescence luminescent material, a hydrophobic group is introduced into a molecular structure to improve stability and the luminescent property of the material, and a series of iridium metal complexes are obtained. The series of the iridium metal complexes serves as the organic red phosphorescence luminescent material, the luminous efficacy of the series of the iridium metal complexes is obviously improved compared with a congeneric fluorescent material and phosphorescent material, and the series of the iridium metal complexes is the relatively ideal red light phosphorescent material. Meanwhile, by means of the adjustment of a substituent group, the property of the material better meets the industrial requirement, the adjustment to the aspects such as the material efficiency, film-forming property and luminescence lifetime is achieved, and the organic red phosphorescence luminescent material can be widely applied to the field of organic electroluminescence.

Description

technical field [0001] The invention relates to the field of organic luminescent materials, in particular to an organic red phosphorescent luminescent material and a preparation method and application thereof. Background technique [0002] Currently OLED (Organic Electroluminescent Device) TVs have been put into the market and have attracted widespread attention. The OLED display has been applied to the smart phone field by Samsung, LG, Apple and other companies. With the advancement of application development, the requirements for the luminescence performance, luminescence lifetime and material purity of materials are getting higher and higher. Due to the limited existing synthesis technology, difficulty in material purification, and the toxicity of organic compounds themselves, the progress in the industrialization of OLEDs has been slow. [0003] As the latest generation of flat panel display technology, organic electroluminescent technology can also be used as a lighti...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F15/00H01L51/54C07D217/12
Inventor 孟鸿胡钊余洪涛闫丽佳黄维
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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