Blue light emitting organic luminescent material small-substituent pyridine diimine hydrargyrum complex and method of preparing the same

A technology of mercury-based pyridyldiimide and luminescent materials, which is applied in the direction of luminescent materials, mercury organic compounds, chemical instruments and methods, etc., can solve the problems of low luminous intensity, and achieve the effect of increased yield and strong stability

Inactive Publication Date: 2009-04-08
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low luminous intensity of the existing blue-light-emitting organic light-emitting materials, and provide a blue-light-emitting organic light-emitting material with a small substituent pyridinediimide mercury complex and a preparation method thereof

Method used

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  • Blue light emitting organic luminescent material small-substituent pyridine diimine hydrargyrum complex and method of preparing the same
  • Blue light emitting organic luminescent material small-substituent pyridine diimine hydrargyrum complex and method of preparing the same
  • Blue light emitting organic luminescent material small-substituent pyridine diimine hydrargyrum complex and method of preparing the same

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specific Embodiment approach 1

[0014] Specific implementation mode 1: The blue light-emitting organic luminescent material in this embodiment has a small substituent pyridinediimide mercury complex Hg(2,6-bis[1-(phenylimine)ethyl]pyridine)Cl 2 The molecular formula is C 21 h 19 N 3 HgCl 2 , whose structure is

[0015] Blue light-emitting organic luminescent material Small substituent pyridinediimine mercury complex Hg(2,6-bis[1-(phenylimine)ethyl]pyridine)Cl 2 The steps of the preparation method are as follows: 1. Under nitrogen protection, mix 100-120 mg of 2,6-bis[1-(phenylimine) ethyl]pyridine and 86-104 mg of HgCl 2 Dissolve in 15-25mL of dichloromethane, stir at room temperature for 10-15 hours, then heat until the dichloromethane is evaporated to dryness to obtain a light yellow powder; 2. Recrystallize the product of step 1 for 2-3 times to obtain blue light The organic light-emitting material small substituent pyridinediimide mercury complex C 21 h 19 N 3 HgCl 2 .

[0016] The productive...

specific Embodiment approach 2

[0019] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the organic solvent used for recrystallization in step 2 is CH 3 CN. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Embodiment 3: This embodiment is different from Embodiment 1 in that the stirring time in step 1 is 11 to 14 hours. Others are the same as in the first embodiment.

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Abstract

The invention relates to a small substitution group-pyridine diimine and mercury complex of blue-light emitting organic materials and a preparation method thereof, and relates to the light-emitting organic materials and the preparation method thereof. The small substitution group-pyridine diimine and mercury complex solves the problem of lower intensity in light emitting of the existing blue light-emitting organic material. The molecular formula of the pyridine diimine and mercury complex is C21H19N3HgCl2, C23H23N3HgCl2 or C23H23N3HgCl2. The preparation method is as follows: under the nitrogen protection, a ligand and anhydrous HgCl2 are dissolved in an organic solvent and then stirred, and finally recrystallized. The product prepared by the preparation method of the invention is a single crystal with good shape and the light emitting materials produced can emit blue fluorescence by the test and show better monochromaticity. Additionally, the preparation method is simple in operation and high in yield which can reach more than 80 percent.

Description

technical field [0001] The invention relates to an organic luminescent material and a preparation method thereof. Background technique [0002] The research on the synthesis and performance of organic luminescent materials has always been a hot spot in the field of luminescent materials, and stable blue light compounds are very useful in organic electroluminescent devices (referred to as OLEDs). Organic materials with good performance in red and green light have been obtained, but there are very few organic light-emitting materials in blue light, which has become a technical bottleneck in the development of OLEDs. Recently, luminescent complexes with nitrogen-containing ligands have attracted people's attention because of their good performance and potential application prospects in sensor technology, photochemical and electroluminescent materials. Therefore, it is very challenging to design and synthesize efficient blue organic light-emitting materials by utilizing the tun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/14C09K11/06
Inventor 范瑞清王平杨玉林
Owner HARBIN INST OF TECH
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