Blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes and preparation method thereof

A technology of luminescent materials and complexes, applied in luminescent materials, mercury-organic compounds, chemical instruments and methods, etc., can solve the problems of poor brightness, low luminous efficiency, short life, etc., and achieve good monochromatic performance, low cost, and stability. strong effect

Active Publication Date: 2013-07-10
湖南哈工机器人研究院有限公司
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Problems solved by technology

[0003] In order to solve the technical problems of low luminous efficiency, poor brightness and short service life of the existing blue organic light-emitting materials, the present invention provides a blue organic light-emitting material ortho-pyridine 2,6-substituted monoamine mercury complex and its Preparation

Method used

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  • Blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes and preparation method thereof
  • Blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes and preparation method thereof
  • Blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes and preparation method thereof

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specific Embodiment approach 1

[0026] Specific implementation mode 1: The blue organic light-emitting material in this implementation mode is [(2,6-dimethylphenyl)-pyridine-2-methyleneamine] with the 2,6-substituted monoamine mercury complex HgCl 2 , [(2,6-Dimethylphenyl)-pyridine-2-methyleneamine]HgCl 2 The molecular formula is C 14 h 14 Cl 2 N 2 Hg, whose structural formula is

[0027]

specific Embodiment approach 2

[0028] Specific embodiment 2: In this embodiment, the blue organic luminescent material is [(2,6-diethylphenyl)-pyridine-2-methyleneamine], which is a mercury complex substituted by 2,6-position monoamines in the blue organic luminescent material. HgCl 2 , [(2,6-Diethylphenyl)-pyridine-2-methyleneamine]HgCl 2 The molecular formula is C 16 h 18 Cl 2 N 2 Hg, whose structural formula is

[0029]

specific Embodiment approach 3

[0030] Specific embodiment three: Specific embodiment one The preparation method of the blue organic luminescent material o-pyridine 2,6-substituted monoamine mercury complex is carried out according to the following steps:

[0031] 1. Under the condition of nitrogen protection, mix 20-30 mg of (2,6-dimethylphenyl)-pyridine-2-methyleneamine and 25-40 mg of HgCl 2 Dissolve in a mixed organic solvent, heat to reflux, and stir for 7 hours to obtain a yellow reaction liquid;

[0032] 2. Filter the product of step 1 while it is hot, and then volatilize at room temperature for 3 to 10 days to obtain [(2,6-dimethylphenyl)-pyridine-2-methyleneamine]HgCl 2 ;

[0033] The mixed organic solvent described in step 1 is CH 3 OH and CH 2 Cl 2 A mixed solution of which CH 3 OH and CH 2 Cl 2 The volume ratio is 1:5.

[0034] The reaction equation of the present embodiment is as follows

[0035]

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Abstract

The invention provides blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes and a preparation method thereof, relating to light emitting materials and a preparation method thereof and solving the technical problems that the existing blue organic light emitting materials have low light emitting efficiency, poor brightness and short lives. The blue organic light emitting materials o-pyridine condensed 2,6-substitued monoamine mercury complexes are Cl4H14Cl2N2Hg and Cl6H18Cl2N2Hg. The preparation method comprises the steps of dissolving (2,6-dimethylphenyl)-pyridine-2-methyleneamine or (2,6-diethyphenyl)-pyridine-2-methyleneamine and HgCl2 in a mixed organic solvent under the condition of nitrogen protection, carrying out heating reflux, stirring and filtering and then volatilizing the product at room temperature, thus obtaining Cl4H14Cl2N2Hg or Cl6H18Cl2N2Hg. The method is simple, is easy to operate, uses common drugs and reagents, is low in cost and belongs to the field of preparation of light emitting materials.

Description

technical field [0001] The invention relates to a luminescent material and a preparation method thereof. Background technique [0002] Metal-organic complexes play an important role in functional materials such as luminescence, magnetism, catalysis, and hydrogen storage due to their structural diversity and tunability. . Among them, metal complexes with strong fluorescent light-emitting ability have very important potential application value, and can be developed as new light-emitting functional materials. To realize full-color display in organic electroluminescent devices (OLEDs), materials that emit red, green, and blue light are essential. Now red and green light materials with good performance have been obtained, but blue light materials have not been well resolved due to poor stability, low efficiency and short life, which has become a bottleneck in the development of organic electroluminescence technology. At the same time, due to the wide energy gap of blue light m...

Claims

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Application Information

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IPC IPC(8): C07F3/14C09K11/06
Inventor 范瑞清董玉伟杨玉林曹文武
Owner 湖南哈工机器人研究院有限公司
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