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Organometallic compound and organic light-emitting body comprising same

A light-emitting diode, organic metal technology, applied in indium organic compounds, platinum group organic compounds, light-emitting materials, etc., can solve the problem of poor life of blue phosphorescent OLED components

Inactive Publication Date: 2017-07-14
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] FIrpic materials are often used in commercially available or academically published blue phosphorescent light-emitting materials for OLED elements. However, FIrpic materials are one of the reasons for the poor life of blue phosphorescent OLED elements. Therefore, it is necessary to develop phosphorescent materials that can replace FIrpic materials. Luminescent materials are a very important topic

Method used

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  • Organometallic compound and organic light-emitting body comprising same
  • Organometallic compound and organic light-emitting body comprising same
  • Organometallic compound and organic light-emitting body comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Synthesis of the Disclosed Organometallic Complex (DFTIr(taz))

[0070]

[0071] step 1:

[0072]

[0073] Prepare a 100mL double-necked bottle, after repeated dehydration and deoxygenation, fill with nitrogen, add 2,5-dibromopyridine (2,5-dibromopyridine, 1g, 4.22mmol) and 40mL of anhydrous Solvent diethyl ether (ether), then, cool the reaction flask to -78°C, wait for the temperature of the reaction flask to balance, add a strong base n-BuLi (3mL, 4.64mmol) dropwise with a syringe, after the addition, let the reaction proceed at - Continue the reaction at 78°C for one hour, then add trimethylchlorosilane TMSCl (trimethyl chlorosilane) (0.65mL, 5mmol) at low temperature, remove the low temperature tank and allow the reaction to gradually return to room temperature, and extract three times with EA and water, And the organic layer collected three times was dried and filtered, and after being sucked dry by a cyclone concentrator, it was purified by column chromatog...

Embodiment 2

[0085] Synthesis of the Disclosed Organometallic Complex (DFTIr(iaz))

[0086]

[0087] Steps 1-3 are the same as in Example 1.

[0088] Step 4:

[0089]

[0090] Prepare a 10mL round bottom bottle, add Dimer-A (0.5g, 0.33mmol), ligand (193mg, 1.33mmol), weak base trimethylamine (0.1mL, 1.33mmol), then, add 5mL of 2-methoxyethanol as a solvent, after repeated dehydration and deoxygenation, fill with nitrogen, and heat the reaction To 120°C, react for three hours, return the reaction to room temperature, add water to precipitate, filter the solution and wash the solid with water and n-hexane, collect the solid and wash with CH 2 Cl 2 dissolved in CH 2 Cl 2 and water were extracted three times, and the organic layer collected three times was dried and filtered, and after being sucked dry by a cyclone concentrator, column chromatography was carried out to purify to obtain the organometallic complex (DFTIr(iaz )).

[0091] The compound DFTIr(iaz) was analyzed by nuclea...

Embodiment 3

[0093] Synthesis of the Disclosed Organometallic Complex (DFTIr(pic))

[0094]

[0095] Steps 1-3 are the same as in Example 1.

[0096] Step 4:

[0097]

[0098] Prepare a 10mL round bottom bottle, add Dimer-A (0.5g, 0.33mmol), ligand (164mg, 1.33mmol), weak base trimethylamine (0.1mL, 1.33mmol), then, add 5mL of 2-methoxyethanol as a solvent, after repeated dehydration and deoxygenation, fill with nitrogen, and heat the reaction To 120°C, react for three hours, return the reaction to room temperature, add water to precipitate, filter the solution and wash the solid with water and n-hexane, collect the solid and wash with CH 2 Cl 2 dissolved in CH 2 Cl 2 and water were extracted three times, and the organic layer collected three times was dried and filtered, and after being sucked dry by a cyclone concentrator, column chromatography was carried out to purify to obtain the organometallic complex (DFTIr(pic )).

[0099] The compound DFTIr(pic) was analyzed by nucl...

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Abstract

The disclosure provides an organometallic compound. The organometallic compound has a chemical structure (I) shown in the description, wherein one of R1 and R2 is trimethylsilyl (TMS) and the other is hydrogen, at least one of R3 and R4 is fluorine or C1-6 alkyl, or one of R3 and R4 is fluorine and the other is C1-6 alkyl, m=0 or 1, and n+m=3. The disclosure also provides an organic light-emitting body comprising the organometallic compound.

Description

[0001] 【Technical field】 [0002] The present disclosure relates to an organometallic complex, in particular to an organometallic complex with excellent thermal stability and an organic light-emitting diode comprising the same. [0003] 【Background technique】 [0004] Organic Light Emitting Diode (OLED) has excellent characteristics such as thinness, self-luminescence, low power consumption, no need for backlight, no viewing angle limitation, and high response rate. Tomorrow's star. Nowadays, OLED elements are gradually using phosphorescent materials with higher luminous efficiency as dopant. Therefore, in addition to the need to match suitable host materials with comparable energy levels, the design of phosphorescent materials has also gradually received attention. Among them, blue phosphorescent luminescent materials need to have a large energy gap (energy gap, E g ), qualified molecules must have a special ligand system, and the thermal stability of the phosphorescent mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342H10K50/11
Inventor 林晋声刘嘉伦张孟浩叶翰政
Owner IND TECH RES INST