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Phenanthroline ligand-containing tetrahedral cuprous complex luminescent material in crystal form

A technology of luminescent materials and complexes, which is applied in the direction of luminescent materials, copper organic compounds, electric solid devices, etc., can solve the problems of low luminous brightness and achieve the effects of simple and easy-to-obtain raw materials, suppress non-radiative attenuation, and low production costs

Inactive Publication Date: 2017-08-04
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] After years of research and development, it is found that Cu(I) complexes still have some deficiencies in practical applications, such as the luminous colors of Cu(I) complexes are mainly green and yellow, and the luminous brightness is generally not high.

Method used

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  • Phenanthroline ligand-containing tetrahedral cuprous complex luminescent material in crystal form
  • Phenanthroline ligand-containing tetrahedral cuprous complex luminescent material in crystal form
  • Phenanthroline ligand-containing tetrahedral cuprous complex luminescent material in crystal form

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A large amount of Cu(Phen)(PPh 3 ) 2 (PF 6 ) crystal sample preparation: first weigh 373mg Cu(CH 3 EN) 4 PF 6 Dissolve in 7mL acetonitrile, then weigh 198mg of Phen and 525mg of PPh 3 The ligands were dissolved together in 10 mL of dichloromethane (the molar ratio of the three reactants was 1:1:2), these two solutions were mixed, and stirred to make it fully take place in the coordination reaction, and finally the obtained yellow The solution was filtered, and isopropanol was added, and all the solvent was quickly removed by rotary evaporation, and vacuum-dried to obtain a light yellow crystal powder as the product, with a yield of 95% (calculated as Cu).

Embodiment 2

[0035] Synthesis of Cu(I) Complex Cu(Phen)(PPh 3 ) 2 (PF 6 ) single crystal: first weigh 37mg Cu(CH 3 EN) 4 PF 6 Dissolve in 5mL acetonitrile, then weigh 20mg of Phen and 53mg of PPh 3 The ligands were dissolved together in 5 mL of dichloromethane, and the latter solution was added to the former solution at one time, stirred to make it fully reacted and filtered, and the solution was covered with n-hexane to promote the crystallization of the product, and a large number of light yellow crystals were precipitated after standing for several days. A light yellow strip crystal with a size of 0.32mm×0.30mm×0.13mm was selected 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 .

[0036] For the complex Cu(Phen)(PPh 3 ) 2 (PF 6 ) of pure-phase crystal samples were subjected to a series of performance tests. The material crystal of the p...

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Abstract

The invention discloses a yellow-green phosphorescent tetrahedral cuprous complex luminescent material in a crystal form and a preparation method thereof. A phosphorescent complex is obtained by complexing a cuprous salt and a ligand; the molecular structure is Cu(Phen)(PPh3)2(PF56); and Phen and PPh3 in the formula are electroneutral ligands 1,10-phenanthroline and triphenylphosphine. The complex has the advantages that small molecules are easy to purify and the luminous efficiency is high, and has the advantage that the complex is easily dissolved by using an organic solvent. The material is obtained through direct hybrid reaction of Cu(CH3CN)4PF6 and solutions of two ligands. The material has the advantages of being simple in process, simple in equipment, available in raw materials and low in cost. The material can be used as a photoluminescence yellow-green material, and can be used as a luminescent layer phosphorescent material in an electroluminescent device formed by multiple layers of 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] Luminescent materials include photoluminescence, cathodoluminescence, electroluminescence, thermoluminescence, photoluminescence, and radioluminescence. Among them, electroluminescence (EL for short) refers to a phenomenon in which a luminescent material is excited by an electric current and an electric field to emit light under the action of an electric field, also known as electric luminescence. At present, the research direction of electroluminescence is mainly the application of organic materials, such as organic light-emitting diode (Organic Light-Emitting Diode, referred to as OLED). According to the molecular weight of its luminescent material, OLED can be divided into two types: small molecule organic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F1/08H01L51/54
CPCC09K11/06C07F1/08C09K2211/188H10K85/371
Inventor 柴文祥寿容儿宋莉秦来顺魏钦华徐凯杰史宏声范美强
Owner CHINA JILIANG UNIV
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