A kind of trifluoromethyl quinoline cadmium complex tetramer and its preparation method and application

A technology of cadmium trifluoromethylquinoline and trifluoromethyl, which is applied in the field of tetramer containing trifluoromethylquinoline cadmium complex and its preparation, can solve the problem of not being able to meet large-scale production and reduce OLED production costs, etc. problems, achieve broad commercialization prospects, good thermal stability, and reduce costs

Inactive Publication Date: 2017-08-25
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research on the synthesis method and purification method of Mqn is insufficient, which cannot meet the requirements of its commercial mass production, and is not conducive to the reduction of OLED production cost.

Method used

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  • A kind of trifluoromethyl quinoline cadmium complex tetramer and its preparation method and application
  • A kind of trifluoromethyl quinoline cadmium complex tetramer and its preparation method and application
  • A kind of trifluoromethyl quinoline cadmium complex tetramer and its preparation method and application

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Embodiment 1

[0055] (1) Preparation of intermediate (E)-2-[2-(2-trifluoromethyl)vinyl]-8-acetoxyquinoline:

[0056] A, take by weighing 8-hydroxyquinaldine (0.68g 4.25mmol) and o-trifluoromethylbenzaldehyde (0.72g, 4.13mmol), be dissolved in the acetic anhydride of 15ml;

[0057] 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 20 h;

[0058] C, after the heating and reflux reaction finishes, cool to room temperature, pour the reaction solution into 800mL of ice water, filter when solids are precipitated, extract the filtrate three times with dichloromethane, and combine the organic phases obtained by the three extractions;

[0059] D. Wash away the acetic acid in the organic phase with distilled water, dry it with anhydrous sodium sulfate, evaporate the solvent under reduced pressure to obtain the crude product, and use ethyl acetate / petroleum ether with a mass rati...

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Abstract

The invention provides a trifluoromethyl quinoline cadmium complex tetramer and its preparation method and application. The preparation method is as follows: (E)-2-[2-(2-trifluoromethyl) vinyl]-8-hydroxyquinoline is dissolved in N,N-dimethylformamide, methanol is added dropwise, The volume ratio of the N,N-dimethylformamide to the methanol is 1:1~3, and finally the N,N-dimethylformamide solution containing cadmium salt is added, and the resulting mixed solution is placed in a sealed In the container, react at 75-85°C until crystals are precipitated, filter, wash, and dry. The trifluoromethylquinoline-containing cadmium complex tetramer has the advantages of high luminous intensity, good thermal stability, good fluorescence lifetime, etc., and has significant economic value in the preparation of luminescent materials or photoelectric light-emitting devices and other applications.

Description

technical field [0001] The invention relates to the field of metal complexes, more specifically, to a trifluoromethylquinoline cadmium complex tetramer and 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] The luminescent material is the substance that ultimately undertakes the luminous function in the device, so the luminous eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F3/08C09K11/06H01L51/54
CPCC09K11/06C07F3/08C07B2200/13C09K2211/1029C09K2211/1007H10K85/654H10K50/00
Inventor 霍延平王春泉李晓阳杨百兴陆继果
Owner GUANGDONG UNIV OF TECH
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