Unlock instant, AI-driven research and patent intelligence for your innovation.

Organic iridium metal complex and preparation method and application thereof

An iridium metal complex, organic technology, applied in indium organic compounds, platinum group organic compounds, organic chemistry and other directions, can solve the problems of low blue color purity and luminous efficiency, and achieve the effects of high yield and easy reaction

Inactive Publication Date: 2015-03-18
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide an organic iridium metal complex to solve the technical problems of the existing organic iridium metal complexes with low blue light color purity and low luminous efficiency

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
  • Organic iridium metal complex and preparation method and application thereof
  • Organic iridium metal complex and preparation method and application thereof
  • Organic iridium metal complex and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] Correspondingly, the embodiment of the present invention also provides a method that can be used to prepare the organic iridium metal complex of the general formula (I) of the molecular structure. The preparation method flow is as follows figure 1 shown. The preparation method of the organic iridium metal complex comprises the following steps:

[0041] S01. provide the compound A of the following structural formula;

[0042]

[0043] S02. Utilize compound A to prepare chloro-bridged dimer B: in an oxygen-free environment, the compound A provided in step S01 and hydrated iridium trichloride or hydrated sodium chloroiridate carry out a thermal reflux reaction in a reaction solvent, The chlorine bridged dimer B of the following general formula is generated:

[0044]

[0045] S03. Ligand exchange reaction of chlorine bridge dimer B and 3-trifluoromethyl-5-(2'-pyridyl)-1,2,4-triazole to prepare organic compound of general formula (I) Iridium metal complex: in an oxy...

Embodiment 1

[0085] Bis(2-(4'-Fluoro-5'-cyanophenyl)-5-phenylpyrimidine-N,C 2' )(3-trifluoromethyl-5-(2'-pyridyl)-1,2,4-triazole) iridium metal complex and its synthesis method:

[0086] (1) Synthesis of 2-(3'-cyano-4'-fluorophenyl)-5-phenylpyrimidine:

[0087] Under nitrogen protection, 2.35g (10mmol) 2-bromo-5-phenylpyrimidine, 1.65g (12mmol) 3-cyano-4-fluorophenylboronic acid and 0.58g (0.5mmol) tetrakis(triphenylphosphonium)palladium It was dissolved in 50 mL of toluene, and then 25 mL of an aqueous solution containing 2.76 g (20 mmol) of potassium carbonate was added dropwise to the reaction system; heated to 100 ° C and stirred for 10 h; after the reaction solution was cooled to room temperature, dichloromethane was extracted and separated. liquid, washed with water until neutral, and dried over anhydrous magnesium sulfate; filtered, and the filtrate was evaporated under reduced pressure to obtain the crude product; ethyl acetate and n-hexane with a volume ratio of 1 / 3 were used as ...

Embodiment 2

[0099] Bis(2-(4'-Fluoro-5'-cyanophenyl)-4-(fluoren-9'-yl)pyrimidine-N,C 2' )(3-trifluoromethyl-5-(2'-pyridyl)-1,2,4-triazole) iridium metal complex and its synthesis method:

[0100] (1) Synthesis of 2-(3'-cyano-4'-fluorophenyl)-4-(fluoren-9'-yl)pyrimidine:

[0101] Under nitrogen protection, 3.23g (10mmol) 2-bromo-4-(fluoren-9'-yl)pyrimidine, 1.65g (10mmol) 3-cyano-4-fluorophenylboronic acid and 0.42g (0.6mmol) bischlorodicarbonate (Triphenylphosphorus) palladium was dissolved in 60 mL of N,N-dimethylformamide, and then 30 mL of an aqueous solution containing 1.59 g (15 mmol) of sodium carbonate was added dropwise to the reaction system; the reaction was stirred for 12 h under heating to 90 °C After the reaction solution was cooled to room temperature, dichloromethane was extracted, liquid-separated, washed with water to neutrality, and dried over anhydrous magnesium sulfate; filtered, and the filtrate was evaporated under reduced pressure to obtain the crude product; The e...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
current efficiencyaaaaaaaaaa
quantum efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention discloses an organic iridium metal complex and a preparation method and an application thereof. A molecular structure general formula of the organic iridium metal complex is shown in (I), wherein, at least one group of R1, R2, R3 in (I) is alkoxy or / and aromatic group. The preparation method comprises the steps of preparing a chlorine bridge biopolymer and using the chlorine bridge biopolymer to prepare the organic iridium metal complex with the structure general formula (I). The above organic iridium metal complex takes 2-(3'-cyan-4'-fluorophenyl)pyrimidine as a main structure of an iridium metal ligand, and the organic iridium metal complex has high blue light purity and luminescence efficiency, and the organic iridium metal complex has high blue light purity and luminescence efficiency.

Description

technical field [0001] The invention belongs to the technical field of organic electro-phosphorescent materials, in particular to an organic iridium metal complex and a preparation method and application thereof. Background technique [0002] Organic electroluminescence refers to a luminescence phenomenon in which organic materials directly convert electrical energy into light energy under the action of an electric field. In the early days, the research on organic electroluminescence was stagnant due to the high driving voltage and low luminous efficiency of organic electroluminescence devices. Until 1987, Tang et al. of Kodak Company in the United States invented the 8-hydroxyquinoline aluminum (Alq3) as the light-emitting material, and the aromatic diamine was used to make a uniform and dense high-quality film. High-efficiency organic electroluminescent devices have opened a new prelude to the research on organic electroluminescent materials. However, due to the limitati...

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 Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342
Inventor 周明杰王平张娟娟黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com