Platinum complex

A technology of platinum complexes and complexes, which is applied in the direction of platinum group organic compounds, platinum organic compounds, compounds containing group 8/9/10/18 elements of the periodic table, etc., and can solve the problems of efficiency reduction, phosphorescence quenching, Efficiency roll-off and other issues, to achieve the effect of convenient design and production, simple preparation method and high yield

Inactive Publication Date: 2017-05-10
AAC MICROTECH CHANGZHOU +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] As a phosphorescent material, the lifetime of the excited state of the platinum complex is generally on the order of microseconds, which is easy to cause phosphorescence quenching between the triplet-triplet state and the triplet-exciton of the platinum complex
In addition, in the current commonly used materials, the hole mobility of hole transport materials is much higher than that of electron transport materials, and the commonly used host materials are mainly hole transport, which will lead to a large number of redundant holes. Aggregation of holes at the interface between the light-emitting layer and the electron-transporting layer
These factors can lead to reduced efficiency and severe efficiency roll-off

Method used

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Experimental program
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Effect test

Embodiment 1

[0059] Embodiment 1, the synthesis of complex PtOPN-001:

[0060]

[0061] Platinum salt K2PtCl4 (0.415g, 1mmol) and 2-(4-trifluoromethyl) phenylpyridine (2.5mmol, 0.475g) were added to a mixed solvent of 2-ethoxyethanol and water (3:1, v / v). The reaction system was stirred and reacted at 80° C. for 16 hours, and the precipitate was the platinum dimer bridged complex. Take the platinum dimer bridged complex (0.33mmol, 0.3g) and Kfpip (0.99mmol, 0.53g) into 2-ethoxyethanol solvent, react at 80°C for 16 hours, cool, remove the solvent under reduced pressure, and Column chromatography (silica gel column, eluent: CH2Cl2 / petroleum ether 1:2 (v / v)), the obtained yellow powder is PtOPN-001.

[0062] Yield: 25.0%.1H NMR (500MHz, CDCl3) δ9.13-8.99 (m, 1H), 7.91-7.87 (m, 8H), 7.78 (t, J=7.83Hz, 1H), 7.37-7.34 ( m,10H),7.13-7.07(m,2H),6.85(ddd,J=2.37,9.24,11.84Hz,1H).MALDI-TOF,m / z:905.379[M].

[0063]

Embodiment 2

[0064] Embodiment 2, the synthesis of complex PtOPN-007:

[0065]

[0066] Use the same operation method as in Implementation 1, just replace Kfpip with Ktfmpip to get PtOPN-007. Yield: 25.0%. MALDI-TOF, m / z: 1105.603[M].

[0067]

Embodiment 3

[0068] Embodiment three, the synthesis of complex PtOPN-010:

[0069]

[0070] Adopt the same operation mode as in the first implementation, just replace Kfpip with Na5fpip to obtain PtOPN-007. Yield: 10.0%. MALDI-TOF, m / z: 1193.4778[M].

[0071]

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Abstract

The invention relates to a platinum complex shown as general formula (I). Compared with platinum complexes researched and reported widely, the novel platinum complex has the advantages of high light-emitting efficiency, small light-emitting quenching effect, high chemical property stability, high electronic transmission efficiency and excellent device performance and brings great convenience to design and production of organic light-emitting devices and lighting sources.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of organic electroluminescence, in particular to a class of platinum complexes. [0003] 【Background technique】 [0004] Against the background of increasing global energy demand and worrying ecological environment, governments of various countries have vigorously developed sustainable energy-saving technologies and industries based on high technology. Organic electroluminescent devices (OLEDs) have attracted much attention because of their advantages such as wide viewing angle, high brightness, low energy consumption and flexible devices, and are known as the key technology that will dominate the future display world. In recent years, a large number of studies have shown that among many complexes of heavy metal elements, platinum complexes are considered to be one of the most ideal choices for OLEDs phosphorescent materials. with 5d 9 6s 1 The iridium atom of the outer electron structure has a 5d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0086C09K2211/185H10K85/346
Inventor 郑佑轩陆光照潘毅左景林王毅周洁黄达曹辰辉谢再锋
Owner AAC MICROTECH CHANGZHOU
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