Organic white light material o-pyridine p-benzene bis(imino) cadmium/mercury complex and preparation method thereof

A technology of cadmium phenylenediimide and mercury phenylenediimide is applied in the field of organic light-emitting materials and their preparation, can solve the problems of low yield, complex synthesis process, short fluorescence lifetime and the like, and achieves a simple method and strong stability. Effect

Active Publication Date: 2015-03-11
湖南哈工机器人研究院有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide an organic white light material o-pyridine-p-phenylenediimide cadmium / mercury complex and a preparation method thereof in order to solve the problems of complex synthesis process, low yield and short fluorescence lifetime of existing organic white light-emitting materials

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  • Organic white light material o-pyridine p-benzene bis(imino) cadmium/mercury complex and preparation method thereof
  • Organic white light material o-pyridine p-benzene bis(imino) cadmium/mercury complex and preparation method thereof
  • Organic white light material o-pyridine p-benzene bis(imino) cadmium/mercury complex and preparation method thereof

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specific Embodiment approach 1

[0022] Specific Embodiment 1: In this embodiment, the organic white light material o-pyridine-p-phenylene bis-imide cadmium complex, that is, [N,N'-bis(2-acetylpyridylmethylene)benzene-1,4-diamine]CdCl 2 , whose molecular formula is C 20 h 18 N 4 CdCl 2 , the structural formula is:

[0023]

specific Embodiment approach 2

[0024] Specific embodiment 2: In this embodiment, the preparation method of the organic white light material o-pyridine-p-phenylene bisimide cadmium complex is implemented according to the following steps:

[0025] 1. Mix 20-40mg of N,N'-bis(2-acetylpyridylmethylene)benzene-1,4-diamine and 25-40mg of CdCl 2 Dissolve in methanol, heat and reflux for 5 to 7 hours to obtain a yellow turbid reaction solution; 2. Filter the yellow turbid reaction solution obtained in step 1 to collect the solid powder; 3. Wash the solid powder 3 to 5 times with methanol to obtain o-pyridine Cadmium complexes of p-phenylene diimide.

[0026] The reaction equation of the present embodiment is as follows:

[0027]

[0028] The cadmium complex [N,N'-bis(2-acetylpyridylmethylene)benzene-1,4-diamine]CdCl obtained in this embodiment 2 It is a yellow powder with a yield of over 65%.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the yellow turbid reaction solution obtained in step 2 is filtered by step 1. The yellow turbid reaction solution is directly poured into a Buchner funnel for suction filtration. Other steps and parameters are the same as in the second embodiment.

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Abstract

The invention provides an organic white light material o-pyridine p-benzene bis(imino) cadmium / mercury complex and a preparation method thereof, relates to an organic light-emitting material and a preparation method therefore, and aims at solving the problems of the conventional white light-emitting material that the synthesis process is complex, the yield is low and the service life of fluorescence is short. The organic white light material consists of an o-pyridine p-benzene bis(imino) cadmium complex [N, N'-bis(2-acetylpyridine methylene) benzene-1, 4-diamine] CdCl2 and an o-pyridine p-benzene bis(imino) mercury complex [N, N'-bis(2-acetylpyridine methylene) benzene-1, 4-diamine] HgCl2. The preparation method comprises the following steps of: 1, dissolving N, N'-bis(2-acetylpyridine methylene) benzene-1, 4-diamine and CdCl2 or HgCl2 into methanol, and heating and refluxing; 2, filtering turbid reaction liquid and collecting solid powder; and 3, washing with methanol to obtain the organic white light material. The preparation method is simple in synthetic process, the yield can be up to more than 60%, and the service life of fluorescence is relatively long.

Description

technical field [0001] The invention relates to an organic luminescent material and a preparation method thereof. Background technique [0002] As an important part of coordination chemistry, metal-organic complexes play a huge role in many aspects such as hydrometallurgy, industrial catalysis, material chemistry, environmental protection, drug synthesis, and life sciences. Metal complexes with strong fluorescent light-emitting ability have very important potential application value and can be developed as new light-emitting functional materials. Metal-organic light-emitting complexes are more stable than pure organic ligands, and their light-emitting properties are easy to adjust. They are a new type of light-emitting materials under research. The structure of the coordination compound is composed of two parts, the central ion and the organic ligand. The luminescent properties of the complex are related to the structural characteristics of the metal ion and the organic lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C07F3/08C07F3/14
CPCY02B20/181Y02B20/00
Inventor 范瑞清周炜杨玉林曹文武
Owner 湖南哈工机器人研究院有限公司
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