A kind of zinc -type zinc -type zinc -like barrier -based dual crystal and their preparation methods and applications

A hydroxyquinoline and hydroxyquinoline technology are applied in the field of a novel fluorene-containing 8-hydroxyquinoline zinc complex dimer and its preparation field, which can solve the problem that the luminous intensity and service life of the device cannot reach the practical stage, and the OLED Reduce production costs, can not meet the problems of large-scale production, etc., to achieve the effects of broad commercialization prospects, good thermal stability, and significant economic value

Inactive Publication Date: 2017-02-22
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among numerous OELMs, since the properties of 8-hydroxyquinoline metal complexes (Mqn) are superior to other types of OELMs, the luminous intensity and service life of devices made by existing Mqn are still not practical. stage
In addition, due to insufficient research on the synthesis method and purification method of Mqn, it cannot meet the requirements of its commercial mass production, which is not conducive to the reduction of OLED production cost.

Method used

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  • A kind of zinc -type zinc -type zinc -like barrier -based dual crystal and their preparation methods and applications
  • A kind of zinc -type zinc -type zinc -like barrier -based dual crystal and their preparation methods and applications
  • A kind of zinc -type zinc -type zinc -like barrier -based dual crystal and their preparation methods and applications

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Embodiment 1

[0052] (1) Preparation of intermediate (E)-2-[fluorenyl) vinyl]-8-acetoxyquinoline:

[0053] A, take by weighing 8-hydroxyquinaldine (2-methyl-8-hydroxyquinoline) 1.8g and 2-fluorenaldehyde 2.0g, be dissolved in the acetic anhydride of 15ml;

[0054] B, the mixed solution obtained in step A is placed in a 50mL two-necked round-bottomed flask, magnetically stirred under the protection of nitrogen, and heated to reflux for 30h;

[0055] C, after the heating and reflux reaction finishes, cool to room temperature, pour the gained reaction solution into 750mL of ice water, filter when solids are precipitated, extract the filtrate three times with dichloromethane, combine the three extractions to obtain the organic phase;

[0056] D, wash away the acetic acid in the organic phase with distilled water, and use anhydrous sodium sulfate to dry for 3h, then evaporate the solvent under reduced pressure to obtain the crude product, use ethyl acetate / petroleum ether with a volume ratio of 1:...

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Abstract

The invention provides a novel fluorene-containing 8-hydroxyquinoline zinc complex dimer crystal and its preparation method and application. The preparation method is as follows: (E)-2-[2-(fluorenyl) vinyl]-8-hydroxyquinoline is dissolved in N,N-dimethylformamide, methanol is added dropwise, the N, The volume ratio of N-dimethylformamide to the methanol is 1:2~4, finally add the N,N-dimethylformamide solution containing zinc salt, place the resulting mixed solution in a sealed container, 60 React at ~100°C until the crystals are precipitated, filter, wash the crystals with ethanol, and dry them. The dimeric crystal of the fluorene-containing 8-hydroxyquinoline zinc complex has the advantages of high luminous intensity, good thermal stability, and better fluorescence lifetime, and has significant economic value in the preparation of luminescent materials or photoelectric light-emitting devices. .

Description

technical field [0001] The invention relates to the field of metal complexes, more specifically, to a novel zinc complex dimer containing fluorene 8-hydroxyquinoline, as well as its preparation method and application. Background technique [0002] Organic electroluminescent devices (OLEDs) have the advantages of wide viewing angle, low power consumption, fast response speed, simple process, and full-color display, so they have broad application prospects in the fields of flat panel displays and solid-state light sources. Since C.W. Tang of the United States first reported the use of tris(8-hydroxyquinoline)aluminum (Alq3) to make organic electroluminescence devices in 1987, numerous new organic electroluminescence materials (OELM, Organic Electroluminescence Material) have been successfully synthesized to meet Improve the performance requirements of OLED devices. [0003] Among numerous OELMs, since the properties of 8-hydroxyquinoline metal complexes (Mqn) are superior to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D215/30C09K11/06H01L51/54
CPCC09K11/06C07D215/30C09K2211/188C09K2211/1044H10K85/381
Inventor 霍延平李晓阳王春泉杨百兴周沛祺孔毅张力张焜
Owner GUANGDONG UNIV OF TECH
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