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Organic blue light-emitting material benzimidazole derivative-indium metal complex and preparation method thereof

A technology of metal complexes and benzimidazoles, which is applied in the field of luminescent materials and its preparation, can solve the problems of short life, poor monochromaticity, and low luminous efficiency, and achieve the effects of increased luminous life, improved luminous efficiency, and simple preparation methods

Inactive Publication Date: 2015-09-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 an organic blue light material benzimidazole derivative indium metal complex and its preparation method

Method used

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  • Organic blue light-emitting material benzimidazole derivative-indium metal complex and preparation method thereof
  • Organic blue light-emitting material benzimidazole derivative-indium metal complex and preparation method thereof
  • Organic blue light-emitting material benzimidazole derivative-indium metal complex and preparation method thereof

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specific Embodiment approach 1

[0028] Specific implementation mode 1: This implementation mode is an organic blue light material benzimidazole derivative indium metal complex with the molecular formula C 26 h 17 Cl 2 N 4 o 2 In, the structural formula is

[0029]

[0030] The advantage of this implementation mode:

[0031] 1. The yield of the organic blue light material benzimidazole derivative indium metal complex prepared in this embodiment is 71% to 77%;

[0032] 2. In the organic blue light material benzimidazole derivative indium metal complex prepared in this embodiment, the structure formed after the coordination between the ligand and metal indium regulates the light emission range of the ligand, and a compound with pure blue light emission is obtained, which is solid at room temperature Under the condition of 360nm as the excitation wavelength, the organic blue light material benzimidazole derivative indium metal complex prepared in this embodiment exhibits blue fluorescence, and the strong...

specific Embodiment approach 2

[0037] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the metal indium ions in the organic blue light material benzimidazole derivative indium metal complex are respectively combined with three nitrogen atoms, two chlorine atoms and one Oxygen atoms are coordinated to form bonds. Others are the same as the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the metal indium ions in the indium metal complex of benzimidazole derivatives of the organic blue light material exhibit a hexacoordinated tetragonal bipyramidal configuration. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a light-emitting material and a preparation method thereof, and concretely relates to an organic blue light-emitting material benzimidazole derivative-indium metal complex and a preparation method thereof. The technical problems of low luminescence efficiency, poor monochromaticity and short life of present organic blue light-emitting materials are solved in the invention. The molecular formula of the organic blue light-emitting material benzimidazole derivative-indium metal complex is C26H17Cl2N4O2In, the structural formula is shown in the specification. The preparation method of the complex comprises the following steps: 1, dissolving 2-quinolinecarbaldehyde and o-phenylenediamine in acetonitrile under the protection of nitrogen, stirring at room temperature under a stirring speed of 400-600r / min for 5-8h, and carrying out pumping filtration to obtain a deep yellow solid; and 2, placing the deep yellow solid and indium chloride in acetonitrile, and carrying out a hydrothermal reaction to obtain the organic blue light-emitting material benzimidazole derivative-indium metal complex. The organic blue light-emitting material benzimidazole derivative-indium metal complex can be obtained in the invention.

Description

technical field [0001] The invention relates to a luminescent material and a preparation method thereof. Background technique [0002] Metal-organic molecules that emit light under the excitation of ultraviolet light, electricity or chemical energy are metal-organic light-emitting materials, which can be widely used in various emerging technologies such as fluorescent probes, organic electroluminescence, field-effect transistors, and light-harvesting systems. field. With the development of society, people's demand for these organic light-emitting materials with special applications is further increasing, so it is of great significance to develop new metal-organic light-emitting materials with special functions. At present, the red and green light materials used in organic electroluminescent devices (OLED) have reached the practical requirements, while the blue light materials are relatively lagging behind. Metal complexes can prepare blue light materials by adjusting centr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00C09K11/06
CPCC07F5/003C09K11/06C09K2211/188
Inventor 范瑞清杜玺杨玉林董玉伟黄尖
Owner HARBIN INST OF TECH
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