Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of tripyridine carbazole purple fluorescent material

A technology of tripyridine carbazole purple and pyridine carbazole purple, applied in the field of material chemistry, can solve problems such as hindering the pace of full-color device and white light device industry and poor effect

Active Publication Date: 2015-09-30
南通市武鑫化工有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the performance of commonly used organic light-emitting materials, green light materials have the best performance, followed by red light materials, and blue or purple light materials are relatively the worst, thus hindering the industrial pace of full-color devices and white light devices.

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 kind of tripyridine carbazole purple fluorescent material
  • A kind of tripyridine carbazole purple fluorescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 1,3,6-tribromo-9-ethylcarbazole (1.296g, 3mmol), 4-pyridineboronic acid (1.106g, 9mmol) and potassium carbonate (2.073g, 15mmol) into a 250mL reaction device , then add toluene / ethanol / water (75mL / 15mL / 5mL) mixed solvent; take out the air in the reaction device and fill it with nitrogen, and repeat the operation 3 times; then weigh tetrakis (triphenylphosphine) palladium (0.693g , 0.3mmol) into the reaction mixture, vacuumize and fill with nitrogen, repeat the operation 3 times; reflux reaction at 80°C for 1.5 days under nitrogen atmosphere; cool to room temperature after the reaction, separate the liquid, and extract the aqueous phase with dichloromethane for 3 time, combine the organic phases, wash the organic phases with saturated brine for 3 times, then dry them with anhydrous magnesium sulfate, and filter the filtrate under reduced pressure; remove the solvent in the filtrate to obtain a crude product, then use ethyl acetate as a rinse The reagent was separat...

Embodiment 2

[0022] Weigh 1,3,6-tribromo-9-ethylcarbazole (0.864g, 2mmol), 4-pyridineboronic acid (2.213g, 18mmol) and potassium carbonate (8.293g, 60mmol) into a 250mL reaction device , then add toluene / ethanol / water (90mL / 60mL / 18mL) mixed solvent; take out the air in the reaction device and fill it with nitrogen, and repeat the operation 3 times; then weigh tetrakis (triphenylphosphine) palladium (0.0578g , 0.05mmol) into the reaction mixture, vacuumize and fill with nitrogen, repeat the operation 3 times; under nitrogen atmosphere, reflux reaction at 85°C for 3 days; after the reaction, cool to room temperature, separate the liquid, and extract the aqueous phase with dichloromethane 3 times, the organic phases were combined, washed 3 times with saturated brine, and then dried with anhydrous magnesium sulfate, and the filtrate was filtered under reduced pressure; the solvent in the filtrate was removed to obtain a crude product, and then ethyl acetate was used as the eluting agent. Separ...

Embodiment 3

[0024] Weigh 1,3,6-tribromo-9-ethylcarbazole (1.296g, 3mmol), 4-pyridineboronic acid (1.475g, 12mmol) and potassium carbonate (3.455g, 25mmol) into a 250mL reaction device , then add toluene / ethanol / water (90mL / 30mL / 10mL) mixed solvent; take out the air in the reaction device and fill it with nitrogen, and repeat the operation 3 times; then weigh tetrakis (triphenylphosphine) palladium (0.173g , 0.15mmol) into the reaction mixture, vacuumize and fill with nitrogen, repeat the operation 3 times; reflux reaction at 95°C for 2 days under nitrogen atmosphere; naturally cool to room temperature after the reaction, separate the liquid, and use dichloromethane for the water phase Extracted 3 times, combined the organic phase, washed the organic phase 3 times with saturated brine, dried with anhydrous magnesium sulfate, and filtered the filtrate under reduced pressure; removed the solvent in the filtrate to obtain a crude product, and then used ethyl acetate as The eluent was separate...

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 discloses a purple fluorescent material, which is characterized by being a tripyridine carbazole organic compound with the name of 1,3,6-tri (4-pyridyl)-9-ethyl carbazole (referred to as tripyridine carbazole) and a molecular formula of C29H22N4. The fluorescent material has determined spatial structure and accurate molecular formula. The tri pyridine carbazole compouns containing three pyridine units and a carbazole unit, a plurality of conjugated large Pi bonds enhance the delocalization of electrons, and make electron transition and energy transfer easier, so that the compound has high luminous efficiency and a wide range of application.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a tripyridinecarbazole purple fluorescent material. Background technique [0002] Organic light-emitting diodes (OLEDs), with self-luminescence, low power consumption, fast response time, high brightness, all solid state, simple preparation process, high efficiency, wide viewing angle, ultra-thin, high and low temperature resistance, With many advantages such as flexibility, it is known as the most ideal and most potential next-generation display technology. Organic electroluminescent materials are fundamental to realize OLED light emission. Organic small molecule luminescent materials used in OLEDs have the advantages of strong chemical modification, wide selection range, easy purification, high quantum efficiency, and can produce red, green, blue, purple, yellow and other color emission peaks, etc., and should meet the following conditions: a) has a high fluoresc...

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): C07D401/14C09K11/06
Inventor 赵亚云李星赵秀华康晶燕刘素娟
Owner 南通市武鑫化工有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com