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Metal complex, preparation method and use thereof, display device

A technology for metal complexes and display devices, which is applied in electric solid devices, semiconductor devices, ruthenium organic compounds, etc., can solve the problem of low luminous efficiency, etc. Effect

Active Publication Date: 2017-12-19
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the fluorescent material itself, the luminous efficiency is not high.

Method used

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  • Metal complex, preparation method and use thereof, display device
  • Metal complex, preparation method and use thereof, display device
  • Metal complex, preparation method and use thereof, display device

Examples

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preparation example Construction

[0075] Corresponding to the above-mentioned metal complexes, an embodiment of the present invention also provides a preparation method of the metal complexes, such as figure 2 As shown, the preparation method mainly includes the following four steps, and it should be noted that the order of steps (1) to (2) and step (3) can be changed.

[0076] Step (1): dissolving the chlorinated disubstituent phenylphosphorus with structural formula (II)(III) in anhydrous toluene, heating to reflux, wherein, the R 1 , R 2 , R 3 or R 4 F, CF independently 3 、CH 3 , or substituted phenyl; drip hexamethyldisilazane HMDS, and dropwise continue to react under reflux state; obtain the intermediate product of structural formula (IV);

[0077]

[0078] Optionally, in this step, the molar ratio of disubstituted phenylphosphine chloride with structural formula (II)(III) to hexamethyldisilazane HMDS is 1:1:(0.8˜1.2).

[0079] Optionally, after adding the HMDS dropwise, the reflux time is 5-7 ...

Embodiment 1

[0097] Embodiment 1 green light Ir complex

[0098]

[0099] Its synthetic steps can be shown by a series of reaction formulas below.

[0100]

[0101] (1) Synthesis of auxiliary ligands and their potassium salts

[0102] Under anhydrous and oxygen-free conditions, dissolve 20mmol of disubstituted phenyl phosphorus chloride in 30mL of anhydrous toluene, heat to reflux, slowly add 11mmol of hexamethyldisilamine (HMDS) dropwise, and continue to The reaction was carried out under reflux for 6 hours. After the reaction was completed, it was cooled, and the reaction by-products trimethylchlorosilane and toluene were removed by rotary evaporation.

[0103] Then the product was dissolved in 4mL THF, and the mixed solution of 2mL 30% hydrogen peroxide and 10mL THF was slowly added dropwise to the reaction liquid, and reacted for 2 hours after the dripping, and poured the liquid into 100mL diethyl ether solution after the end, and there was a large amount of white precipitate F...

Embodiment 2

[0120] Embodiment 2 red light Ir complex

[0121]

[0122] Its synthetic steps can be shown by a series of reaction formulas below.

[0123]

[0124] (1) Synthesis of auxiliary ligands and their potassium salts

[0125] The synthesis steps of the auxiliary ligand and its potassium salt are the same as those in Example 1.

[0126] (2) Synthesis of metal complexes

[0127] The synthesis steps of the metal complex are the same as those in Example 1.

[0128] Yield: 23%

[0129] Characterization of chemical properties:

[0130] 1 H NMR (500MHz, CDCl 3, ppm) δ8.97(d,J=6.3Hz,2H),8.46–8.36(m,2H),7.79–7.62(m,12H),7.40–7.30(m,6H),7.19–7.09(m,4H ),7.04(d,J=6.3Hz,2H),6.45–6.38(m,2H),5.78–5.71(m,2H).MADI-TOF,m / z:[M]calcd for C 78 h 32 f 24 IrN 3 o 2 P 2 ,1753[M]; found 1754.7[M+1]. Melting point: >310℃.

[0131] Elemental analysis results: calculated value: C (%): 53.43 H (%): 1.84 N (%): 2.40

[0132] Measured value: C(%): 53.38 H(%): 1.82 N(%): 2.44

[0133] attach...

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Abstract

The embodiment of the present invention provides a metal complex, which relates to the field of display and is invented for improving display performance. The structural formula of the metal complex is as follows: wherein, the metal atom M is iridium Ir, platinum Pt, osmium Os, rhenium Re, ruthenium Ru or copper Cu; the R1, R2, R3 or R4 are independently -F, - CF3,-CH3, or substituted phenyl; in the structural formula (I), in the substructure (C^N) on the left side of the metal atom M, C is located in the first aromatic ring or aromatic heterocyclic ring, and N is located in the second In the heteroaromatic ring, and C, N, M form the third heteroaromatic ring of five or six members. The invention can be applied to light-emitting materials of display devices.

Description

technical field [0001] The invention relates to the display field, in particular to a metal complex, a preparation method and use thereof, and a display device. Background technique [0002] With the vigorous development of flat panel display technology, organic light emitting diode (Organic Light Emitting Diode, OLED) display, compared with traditional liquid crystal display (Liquid Crystal Display, LCD), in addition to being lighter and thinner, it has more self-illumination, low power consumption, Excellent features such as no need for backlight, no viewing angle limitation, and high response rate have become the mainstream of next-generation flat-panel display technology and are being used more and more widely. [0003] The unique advantages of OLED devices are closely related to the carrier transport materials, luminescent materials, electrode materials and device structures used in the devices. Among them, the luminescent material is the core component of the OLED dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00C07F1/08C09K11/06H01L51/54
CPCC07F1/08C07F13/00C07F15/002C07F15/0033C07F15/0046C07F15/0086C09K11/06C09K2211/185H10K85/342H05B33/14C09K2211/1007C09K2211/1029H10K50/11C07F19/00H10K85/348H10K85/346C07F15/00C09K2211/1014
Inventor 王铖铖刘天真
Owner HEFEI BOE OPTOELECTRONICS TECH
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