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Schiff base mercury metal complexes emitting blue fluorescence and preparation method thereof

A technology of metal complexes and Schiff base mercury, applied in the direction of mercury organic compounds, luminescent materials, chemical instruments and methods, etc., can solve the problems of short life, poor monochromaticity, low luminous efficiency, etc., and achieve high and stable yield Strong, good monochrome performance

Inactive Publication Date: 2013-07-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of low luminous efficiency, poor monochromaticity and short life of the existing blue organic light-emitting materials, and to provide a blue fluorescent Schiff base mercury metal complex and its preparation method

Method used

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  • Schiff base mercury metal complexes emitting blue fluorescence and preparation method thereof
  • Schiff base mercury metal complexes emitting blue fluorescence and preparation method thereof
  • Schiff base mercury metal complexes emitting blue fluorescence and preparation method thereof

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specific Embodiment approach 1

[0026] Embodiment 1: In this embodiment, the blue fluorescent Schiff base mercury metal complex is [pyridine-2-methyleneaniline] HgCl 2 , the molecular formula is C 12 h 10 Cl 2 N 2 Hg, whose structural formula is

[0027]

specific Embodiment approach 2

[0028] Specific embodiment two: In this embodiment, the blue fluorescent Schiff base mercury metal complex is [(4-methylphenyl)-pyridine-2-methyleneamine]HgCl 2 , the molecular formula is C 13 h 12 Cl 2 N 2 Hg, whose structural formula is

[0029]

specific Embodiment approach 3

[0030] Specific embodiment three: the preparation method of the blue fluorescent Schiff base mercury metal complex described in specific embodiment one is carried out according to the following steps:

[0031] 1. Under the condition of nitrogen protection, mix 15-25mg of pyridine-2-methyleneaniline and 25-40mg of HgCl 2 Dissolve in a mixed organic solvent, heat to reflux, and stir for 9 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 7 days to obtain [pyridine-2-methyleneaniline] HgCl 2 ;

[0033] The mixed organic solvent used in step 1 is CH 3 OH and CH 2 Cl 2 mixed solution of 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 Schiff base mercury metal complexes emitting blue fluorescence and a preparation method thereof, relating to light emitting materials and a preparation method thereof and solving the technical problems that the blue organic light emitting materials have low light emitting efficiency, poor monochromaticity and short lives. The Schiff base mercury metal complexes are [pyrindine-2-methyleneaniline]HgCl2 and [(4-methylphenyl)-pyrindine-2-methyleneamine] HgCl2. The preparation method comprises the steps of dissolving pyrindine-2-methyleneaniline or (4-methylphenyl)-pyrindine-2-methyleneamine and HgCl2 in a mixed organic solvent under the protection of nitrogen, carrying out stirring and heating reflux, filtering the product while the product is hot and then volatilizing the product at room temperature, thus obtaining [pyrindine-2-methyleneaniline]HgCl2 or [(4-methylphenyl)-pyrindine-2-methyleneamine]HgCl2. The method is simple, is easy to operate, is high in yield which is over 55% 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 HARBIN INST OF TECH
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