A non-aromatic amine high exciton utilization rate small molecule material and its application

A kind of aromatic amine, high exciton technology, applied in the direction of light-emitting materials, organic chemistry, chemical instruments and methods, etc., to achieve the effect of improving exciton utilization rate, molecular weight determination, and simple structure

Active Publication Date: 2022-05-24
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no organic light-emitting system with high exciton utilization efficiency based on single-molecule non-aromatic amines has been reported so far.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A non-aromatic amine high exciton utilization rate small molecule material and its application
  • A non-aromatic amine high exciton utilization rate small molecule material and its application
  • A non-aromatic amine high exciton utilization rate small molecule material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The reaction formula of the non-aromatic amine-based high exciton utilization small molecule material of structure 1 in this example is as follows:

[0036]

[0037] The specific reaction steps are as follows: thianthrene-1-boronic acid (3.84mmol, 1.00g), 2-chloro-4,6-diphenylpyrimidine (4.22 mmol, 1.13g), potassium phosphate (19.20mmol, 4.07g), Tricyclohexylphosphine (0.31 mmol, 86 mg), Pd 2 (dba) 3 (0.192 mmol, 176 mg) and 100 mL of 1,4-dioxane were successively added to the reactor, and after passing nitrogen for 15 min, the reaction was heated at 110° C. for 18 h. After the reaction was completed, when the system was returned to room temperature, extraction was performed with dichloromethane and saturated brine, the organic phase was recovered, and the solvent was distilled off under reduced pressure. The crude product was isolated and purified by column chromatography with petroleum ether / dichloromethane 5:1 as the eluent to obtain the product of structure 1 i...

Embodiment 2

[0040] The reaction formula of the non-aromatic amine-based high exciton utilization small molecule material of structure 2 in this example is as follows:

[0041]

[0042] The specific reaction steps are as follows: compared with structure 1, the difference is that thianthene-1-boronic acid is replaced with an equivalent amount of phenoxthi-4-boronic acid, and other raw materials and steps are the same as structure 1. The product of structure 2 was finally obtained in 67% yield. Structure 2 Molecular formula: C 28 H 18 N 2 OS; molecular weight: m / z: 430.53; elemental analysis results: C, 78.12; H, 4.21; N, 6.51; O, 3.72; S, 7.45.

Embodiment 3

[0044] The reaction formula of the non-aromatic amine-based high exciton utilization small molecule material of structure 3 in this example is as follows:

[0045]

[0046] The specific reaction steps are as follows: compared with structure 1, the difference is that thianthene-1-boronic acid is replaced with an equivalent amount of phenoxthi-1-boronic acid, and other raw materials and steps are the same as structure 1. The product of structure 3 was finally obtained in 67% yield. Structure 3 Molecular formula: C 28 H 18 N2 OS; molecular weight: m / z: 430.53; elemental analysis results: C, 78.12; H, 4.21; N, 6.51; O, 3.72; S, 7.45.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of organic photoelectric materials, and discloses a non-aromatic amine small molecule material with high exciton utilization rate and its application. The non-aromatic amine high exciton utilization rate small molecule material has a general structural formula shown in formula (I), wherein R 1 , R 2 and R 3 It is the donor unit of thioxanthene, dibenzothiophene or dibenzofuran derivatives. The material obtained by the invention has a single structure, clear molecular weight, does not contain traditional aromatic amine units, and is used in the light-emitting layer of an organic light-emitting device, reflecting a greatly improved exciton utilization rate.

Description

technical field [0001] The invention belongs to the field of organic optoelectronic materials, and in particular relates to a non-aromatic amine type small molecule material with high exciton utilization rate and its application. Background technique [0002] Organic light-emitting diode (OLED) devices show great application prospects in the field of flat panel displays and solid-state light sources due to their characteristics of self-luminescence, wide color gamut, wide viewing angle, and low energy consumption. Compared with polymer materials, small molecular materials are more conducive to improving the efficiency of organic optoelectronic devices due to their advantages of simple synthesis and purification, determination of molecular weight, and stable structure, and have simpler device preparation processes, thereby realizing the commercialization of organic light-emitting diodes application. Thermally Activated Delayed Fluorescence (TADF) materials have an intrinsica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C07D405/04C07D405/14C07D409/04C07D409/14C07D411/04C07D411/14C09K11/06H01L51/54
CPCY02E10/549
Inventor 苏仕健乔振洋蔡欣佚
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap