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A cuprous complex luminescent material based on benzoxazolylquinoline ligand

A luminescent material, the technology of benzoxazole, applied in the field of cuprous complex luminescent materials and luminescent materials, can solve the problems of high cost, affect the promotion and application of OEL and market performance, etc., and achieve low production cost, good phosphorescence emission performance, easy to use. the effect of purification

Inactive Publication Date: 2015-10-07
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A more specific analysis shows that the orange / yellow phosphorescent materials currently on sale for OEL are complexes of noble metals such as iridium and platinum. Although they have good performance, the expensive price also affects the promotion and application of OEL final products and market performance

Method used

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  • A cuprous complex luminescent material based on benzoxazolylquinoline ligand
  • A cuprous complex luminescent material based on benzoxazolylquinoline ligand
  • A cuprous complex luminescent material based on benzoxazolylquinoline ligand

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Experimental program
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Effect test

Embodiment 1

[0032] Cuprous complex luminescent material [Cu(QBO)(PPh3) 2 ]PF 6 Preparation of:

[0033] A. Weigh 0.2mmol of Cu(CH 3 EN) 4 PF 6 , placed in an Erlenmeyer flask, added 10mL of dichloromethane, and stirred to obtain a colorless and clear solution 1;

[0034] B. Weigh 0.2mmol of QBO with a copper salt stoichiometric ratio of 1:1, put it in a 10mL beaker, add 5mL of dichloromethane, and stir to make it a yellow clear solution 2;

[0035] C. Weigh 0.4mmol of PPh3 with copper salt stoichiometric ratio 1:2, place in a 10mL beaker, add 5mL of dichloromethane and stir to obtain clear solution solution 3;

[0036] D. Pour solutions 2 and 3 into solution 1 in turn, stir for 1 h, evaporate the resulting solution to dryness at 40° C., and dry to obtain the product orange-yellow microcrystalline powder.

Embodiment 2

[0038] Cuprous complex luminescent material [Cu(QBO)(PPh3) 2 ]PF 6 Single crystal acquisition and characterization:

[0039] The single crystal was obtained by interfacial diffusion method, and 0.1 mmol of [Cu(QBO)(PPh3) was weighed 2 ]PF 6 Powder, dissolved in 2mL of dichloromethane, placed in a 5mL test tube, and then covered with isopropanol on the solution to promote crystallization of the product, sealed, left standing for several days, to obtain yellow transparent block crystals, choose a size of 0.42 The single crystal of ×0.38×0.32mm was used for X-ray single crystal diffraction, and the analysis obtained [Cu(QBO)(PPh3) 2 ]PF 6 molecular structure. The molecular structure of the compound is shown in the attached figure 1 .

[0040] For the complex luminescent material [Cu(QBO)(PPh3) 2 ]PF 6 A series of performance tests were carried out on the pure phase crystalline powder samples. TG and DSC tests show that the material has good thermal stability, see attach...

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Abstract

The invention discloses a cuprous complex luminescent material capable of emitting orange-yellow phosphorescent light and a preparation method thereof. The phosphorescent complex of the luminescent material is obtained by carrying out complexing on a monovalent copper salt with a ligand; the molecular structure of the phosphorescent complex is [Cu(QBO)(PPh3)2]PF6, and in the formula, PPh3 and QBO are electrically neutral ligands triphenylphosphine and 2-(2-benzoxazole) quinoline. The complex has the advantages of easy micromolecular purification and high luminous efficiency, and also high thermal stability. The material is obtained by directly mixing and reacting Cu(CH3CN)4PF6 with a dichloromethane solution of the ligands, and has the advantages of simple and convenient process, simple equipment, easily available raw materials, low cost and the like. The material can be taken as a photoluminescent orange-yellow-light material and also can be used as a luminescent layer phosphorescent material in an electroluminescent device composed of a plurality of layers of organic materials.

Description

technical field [0001] The invention relates to the field of luminescent materials, in particular to the field of cuprous complex luminescent materials. Background technique [0002] With the development of science and technology, photons are increasingly replacing electrons as the carrier of information. As the technical support of information science, photonics, photochemistry and photonic materials have attracted more and more attention from the scientific and technological circles. Functional materials with special photophysical and photochemical properties have been studied more and more, showing attractive application prospects in electroluminescence devices (LEDs), optical sensors, nonlinear optical materials (NLOs) and other fields. Compared with precious metals, copper has the advantages of cheapness, environmental protection, and non-toxicity, and my country's reserves of copper resources are abundant, ranking third in the world. Therefore, the study of new lumine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F1/08C07F9/50C09K11/06
Inventor 柴文祥洪明卫王建腾夹国华史宏声徐凯杰黄绵吉秦来顺范美强陶晓栋郭驾宇舒康颖
Owner CHINA JILIANG UNIV
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