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Metal complex as well as preparation method and application thereof and display device

A technology of metal complexes and display devices, which is applied in the direction of electric solid devices, semiconductor devices, ruthenium organic compounds, etc., can solve the problems of low luminous efficiency and achieve the effects of reduced interaction, excellent luminous performance, and excellent electron transport ability

Active Publication Date: 2015-05-27
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 as well as preparation method and application thereof and display device
  • Metal complex as well as preparation method and application thereof and display device
  • Metal complex as well as preparation method and application thereof and display device

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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

...

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Abstract

The embodiment of the invention provides a metal complex, relates to the field of display and aims at improving display performance. A structural formula of the metal complex is described in the specification, wherein a metal atom M is Ir, Pt, Os, Re, Ru or Cu; R1, R2, R3 or R4 is -F, -CF3, -CH3 or substituted phenyl respectively; and in the structural formula (I), in a substructure (C^N) arranged at the left side of the metal atom M, C is contained in a first aromatic ring or heteroaromatic ring, N is contained in a second heteroaromatic ring, and C, N and M also form a pentabasic or hexabasic third heteroaromatic ring. The metal complex provided by the invention can be applied to a luminescent material of a display device.

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, more self-illuminating, low power consumption , no backlight source, no viewing angle limitation and high response rate and other excellent characteristics have become the mainstream of the next generation of flat panel display technology and are more and more widely used. [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 de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C07F1/08C09K11/06H01L51/54H10K99/00
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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