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Tricarbonal rhenium (I) complexes containing carrier-transporting groups (oxadiazole or carbazole), preparation method and application thereof

A technology of oxadiazole phenyl and complexes, which is applied in the field of organic electroluminescent devices, can solve the problems of unreached carrier transport performance, annihilation, and long excited state lifetime, and achieve high yield, stable properties, and favorable The effect of purification

Inactive Publication Date: 2010-04-28
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rhenium complexes reported in the literature have longer excited state lifetimes, and are prone to triplet-triplet and triplet-polaron annihilation, and the carrier transport performance of the material has not reached that of organic electroluminescent devices OLEDs. Require

Method used

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  • Tricarbonal rhenium (I) complexes containing carrier-transporting groups (oxadiazole or carbazole), preparation method and application thereof
  • Tricarbonal rhenium (I) complexes containing carrier-transporting groups (oxadiazole or carbazole), preparation method and application thereof
  • Tricarbonal rhenium (I) complexes containing carrier-transporting groups (oxadiazole or carbazole), preparation method and application thereof

Examples

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Embodiment 1

[0028] Example 1: Tricarbonyl [1-(4-5'-phenyl-1,3,4-oxadiazolyl)-2-(2-pyridyl)benzimidazole] rhenium(I) chloride , tricarbonyl chloride [1-(4-N-carbazolylphenyl)-2-(2-pyridyl) benzimidazole] rhenium (I), tricarbonyl chloride [N-(4-5' -Phenyl-1,3,4-oxadiazolephenyl)-2,2'-dipyridylamine] rhenium (I) and tricarbonyl chloride [N-(4-N-carbazolylphenyl) Preparation of -2,2'-dipyridylamine]rhenium(I)

[0029] 1. Preparation of 2-(4-bromophenyl)-5-phenyl-1,3,4-oxadiazole [2-(4-bromophenyl)-5-phenyl-1,3,4-oxadiazole Azole is commercially available, CAS number: 21510-43-0].

[0030] At room temperature, 0.1 mole of 4-bromobenzoyl chloride was added dropwise to a solution of 0.1 mole of benzohydrazide and 0.1 mole of triethylamine in 150 ml of chloroform, stirred for 1 hour, then filtered, and the resulting solid was washed with water and ethanol to obtain 30.32 g of N'-benzoyl-4-bromobenzoylhydrazide. Under nitrogen protection, 20.00 g of N'-benzoyl-4-bromobenzohydrazide and 250 ml ...

Embodiment 2

[0097]Example 2: Tricarbonyl [1-(4-5'-phenyl-1,3,4-oxadiazolephenyl)-2-(2-pyridyl)benzimidazole] rhenium chloride of the present invention (I), tricarbonyl chloride [1-(4-N-carbazolylphenyl)-2-(2-pyridyl) benzimidazole] rhenium (I), tricarbonyl chloride [N-(4 -5'-phenyl-1,3,4-oxadiazolephenyl)-2,2'-dipyridylamine] rhenium (I) and tricarbonyl chloride [N-(4-N-carbazolyl Fluorescent Characterization of Phenyl)-2,2'-Bipyridylamine]Rhenium(I)

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Abstract

The invention provides substituted tricarbonal chloride [2-(2-pyridyl) benzimidazole] co-rhenium complexes or substituted tricarbonal chloride (2,2'-dipyridyl amine) co-rhenium, which are tricarbonal chloride [1-(4-5'-phenyl-1,3,4-oxadiazole phenyl)-2-(2-pyridyl) benzimidazole] co-rhenium (I), tricarbonal chloride [1-(4-N-carbazolyl phenyl)-2-(2-pyridyl) benzimidazole] co-rhenium (I), tricarbonal chloride [N-(4-5'-phenyl-1,3,4-oxadiazole phenyl)-2,2'-dipyridyl amine] rhenium co (I) and tricarbonal chloride [N-(4-N-carbazolyl phenyl)-2,2'-dipyridyl amine] co-rhenium (I). The complexes have a structural formula as follows. The tricarbonal rhenium (I) complexes having the advantages of simple synthesis, help to purification, high yield and stable properties in air can be applied to molecular catalysis, solar energy conversion, colorimetric analysis, molecular recognition, supramolecular assembly, optical information storage, photoluminescence probes in organisms, and other fields. The invention discloses a preparation method for the complexes.

Description

technical field [0001] The present invention relates to complexes of rhenium, and also relates to organic electroluminescent devices. Background technique [0002] Organic Electroluminescence (EL or OEL for short) is a phenomenon in which electrical energy is converted into light energy in a device. Organic Light-emitting Diodes (OLEDs for short), also known as light-emitting diodes, are It is a device for realizing organic electroluminescence. Compared with other flat-panel display technologies such as inorganic electroluminescent display, liquid crystal display, and plasma display, organic electroluminescent display has the characteristics of low energy consumption, low cost, wide viewing angle, high brightness, large area, and wide luminous range. more and more noticeable. [0003] The research on OLEDs originated in the 1950s. Bernanose et al. initially observed luminescence when a DC voltage of 400V was applied to both sides of an anthracene single wafer. This is the ...

Claims

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Application Information

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IPC IPC(8): C07F13/00H01L51/54
Inventor 吴静李红岩郑佑轩左景林游效曾
Owner NANJING UNIV
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