Ruthenium complex with aggregation-induced phosphorescence enhancement properties, its preparation method and application
A ruthenium complex and aggregate state technology is applied in the application field of preparing electroluminescent devices, which can solve the problems of increasing the complexity and difficulty of devices, prone to phase separation, low luminous efficiency and the like, and achieves improving the electroluminescent efficiency of devices. , the effect of reducing production costs and simplifying the preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0049] The embodiment of the present invention also provides a method for preparing a ruthenium complex with aggregation-induced phosphorescence enhancement characteristics, which includes:
[0050] In a protective atmosphere, dissolve the soluble ruthenium salt with a molar ratio of 1:1-3 and the compound as the first ligand in the first solvent, and reflux the reaction for more than 6 hours, and obtain the intermediate product after cooling to room temperature;
[0051] Dissolve the intermediate product with a molar ratio of 1:3-8 and the 2,2-distyrylbenzene derivative as the second ligand in the second solvent, and react at 100-150°C for more than 6 hours, and the obtained reaction The mixture is post-treated to obtain the ruthenium complex.
[0052] Further, the molar ratio of the soluble ruthenium salt, the compound as the first ligand, and the 2,2-distyrylbenzene derivative is 1:1-3:3-8.
[0053] More preferably, the first solvent includes DMF, but not limited thereto. ...
Embodiment 1
[0067] (1) Synthesis of the second ligand 3-(4-(2,2-distyryl)phenyl)-1,10phenanthroline (DP)
[0068] Under nitrogen protection, 3-bromophenanthroline (0.10g, 0.40mmol), 4-(2,2-distyryl) phenylboronic acid (0.14g, 0.48mmol), tetrakis(triphenylphosphine) Add palladium and 20mL tetrahydrofuran into a 100mL three-necked round-bottomed flask and stir at room temperature for 10min, then add 4mL sodium carbonate aqueous solution (2M) to the reaction system and react at 70°C for 24h. , washed with water, dried over anhydrous sodium sulfate, concentrated, column chromatography (SiO 2 , eluent: dichloromethane / methanol volume ratio = 19:1) to obtain DP product 0.12g, yield 69.0%. Mass spectrometry is carried out to described DP: Ms (m / z): 434.1 (M + ). The reaction equation is as follows formula 1.
[0069]
[0070] (2) Ruthenium complex [Ru(bpy) 2 DP] (ClO 4 ) 2 preparation of
[0071] Under nitrogen protection, the RuCl 3 ·3H 2 O (1.56g, 6mmol), 2,2-bipyridine (1.87g, 12...
Embodiment 2
[0075] (1) The synthesis of the second ligand 3-(4-(2,2-distyryl)phenyl)-1,10phenanthroline (DP) is the same as in Example 1.
[0076] (2) Ruthenium complex [Ru(phen) 2 DP] (ClO 4 ) 2 preparation of
[0077] Under nitrogen protection, the RuCl 3 ·3H 2 O (1.56g, 6mmol), 1,10-phenanthroline (2.16g, 12mmol) and lithium chloride (1.68g, 28mmol) were dissolved in 10mL DMF and heated to reflux for 8h. After cooling to room temperature, add 50 mL of acetone and freeze overnight. Suction filtration, after the precipitate is rinsed with ice water and cold acetone, vacuum-dried to obtain [Ru(phen) 2 Cl 2 ] Purple-black microcrystals, yield 66.46%.
[0078] Under nitrogen protection, the [Ru(phen) 2 Cl 2 ] (0.053g, 0.1mmol), DP (0.217g, 0.5mmol) was dissolved in 5mL of ethylene glycol and reacted at 150°C for 8h, cooled to room temperature after the reaction was completed, diluted with 20mL of water, and then added sodium perchlorate Saturated solution until a large amount of ...
PUM
Property | Measurement | Unit |
---|---|---|
internal quantum efficiency | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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