Crystal form of a benzoxazolyl isoquinoline cuprous complex luminescent material

A technology of benzoxazolyl and luminescent materials, which is applied in the direction of luminescent materials, copper organic compounds, electrical components, etc., can solve the problem that the luminous intensity cannot meet the application requirements, achieve good solubility and thermal stability, and promote the system The effect of inter-crossing and suppression of non-radiative attenuation

Inactive Publication Date: 2017-06-20
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It's just that the luminous intensity of Cu(I) complex phosphorescent materials in the OLED working temperature range is still not up to the application requirements.

Method used

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  • Crystal form of a benzoxazolyl isoquinoline cuprous complex luminescent material
  • Crystal form of a benzoxazolyl isoquinoline cuprous complex luminescent material
  • Crystal form of a benzoxazolyl isoquinoline cuprous complex luminescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A large number of phosphorescent complex materials [Cu(2-iQBO)(POP)]PF 6 Preparation of microcrystalline sample: Weigh 0.054g of POP (0.1mmol), 0.024g of 2-iQBO (0.1mmol), 0.037g of Cu(CH 3 EN) 4 PF 6(0.1mmol); respectively add 3ml of dichloromethane to dissolve and mix, fully stir to make it fully take place coordination reaction, obtain deep red clear solution; add isopropanol in the above solution, and remove all solvents by rotary evaporation at room temperature , a red crystal product was finally obtained with a yield of 91% (calculated as Cu).

Embodiment 2

[0030] Synthesis of red phosphorescent complex material [Cu(2-iQBO)(POP)]PF 6 single crystal: Weigh 0.054g of POP (0.1mmol), 0.024g of 2-iQBO (0.1mmol), 0.037g of Cu(CH 3 EN) 4 PF 6 (0.1mmol); add 4ml of dichloromethane, stir fully to make it fully coordinate reaction, and obtain a deep red clear solution; after removing all solvents by rotary evaporation at room temperature, add 2ml of dichloromethane, and cover the solution with isopropyl Alcohol promotes the crystallization of the product, and after standing for a few days, a large number of dark red blocky crystals precipitate out. Pick a deep red block crystal with a size of 0.49mm*0.46mm*0.40mm for X-ray single crystal structure test. The molecular structure of the compound is shown in the attached figure 1 , and its unit cell packing structure is shown in the attached figure 2 .

[0031] For the red phosphorescent complex material [Cu(2-iQBO)(POP)]PF 6 A series of performance tests were carried out on pure phase...

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Abstract

The invention discloses a benzoxazolyl isoquinoline-based cuprous complex red phosphorescent material in crystal form and a preparation method thereof. The phosphorescent complex of the present invention is obtained by complexing a monovalent copper salt with a ligand, and its molecular structure is [Cu(2-iQBO)(POP)]PF6, where 2-iQBO and POP are electrically neutral heterocyclic ligands benzoxazolylisoquinoline and bis(2-diphenylphosphine)phenyl ether. The complex not only has the advantages of easy purification of small molecules and high luminous efficiency, but also has high thermal stability. The material is obtained by directly mixing and reacting Cu(CH3CN)4PF6 and the dichloromethane solution of the ligand, and has the advantages of simple process, simple equipment, readily available raw materials and low cost. The material can be used as a photoluminescent red phosphorescent material, and can also be used as a light-emitting layer phosphorescent material in an electroluminescent device composed of multilayer organic materials.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, to the fields of photoluminescent materials and electroluminescent materials, in particular to the field of organic electroluminescent materials. Background technique [0002] With the development of the times, mankind has entered the information age, and the current large-scale information technology revolution has played a huge role in the direction of social change. Nowadays, the amount of information is huge, information transmission is very fast, and information processing is fast. Although highly integrated electronic devices based on inorganic semiconductor materials and devices such as silicon and germanium are developing rapidly, their information transmission rate is still limited and "electronic bottlenecks" ". In order to break through this bottleneck, optoelectronic technology emerged as the times require, and display technology, one of the important fields of optoelec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C07F1/08H01L51/54
CPCC09K11/06C07F1/08C09K2211/188H10K85/371
Inventor 陶晓栋柴文祥寿容儿宋莉朱秋梦秦来顺范美强史宏声郭驾宇舒康颖
Owner CHINA JILIANG UNIV
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