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Organic compound containing xanthone or thioxanthone structure and application thereof

An organic compound, thioxanthone technology, applied in the field of organic electroluminescent devices, can solve the problems of short-delayed luminescence lifetime, spectral instability, lag in efficiency and lifetime development, etc., achieve strong stability, improve luminous efficiency, improve effect of life

Pending Publication Date: 2022-03-29
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Theoretically, TADF materials can realize 100% exciton utilization rate through anti-intersystem jumping from triplet state to singlet state, but in the process of acting as a host or doping in practical applications, the device effect is not good, and its main The following problems: (1) Since the design of TADF materials requires a small S1-T1 band gap, it is difficult to achieve both fast anti-system crossing rate (short delayed luminescence lifetime) and high fluorescence quantum yield; (2) due to Strong CT effect, TADF material has spectral instability caused by different ratios
[0005] As far as the actual needs of the current OLED display lighting industry are concerned, the development of TADF materials is far from enough, and a lot of manpower and material resources still need to be invested to solve the problems of lagging efficiency and life span encountered in the commercialization of this type of materials.

Method used

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  • Organic compound containing xanthone or thioxanthone structure and application thereof
  • Organic compound containing xanthone or thioxanthone structure and application thereof
  • Organic compound containing xanthone or thioxanthone structure and application thereof

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Experimental program
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Embodiment 14

[0063] The synthetic route of embodiment 14 compound 273

[0064]

[0065] In the three-necked flask, under the protection of nitrogen, add 0.01mol of intermediate D2, 0.012mol of 9H-xanthen-9-one, 3-(4-bromophenyl), 150mL of toluene and stir to mix, add 0.03mol Sodium tert-butoxide, 5 x 10 -5 mol of palladium acetate, heated to 120°C, and reacted for 24 hours; naturally cooled to room temperature, filtered, and the filtrate was subjected to vacuum rotary evaporation (-0.09MPa, 85°C), and passed through a neutral silica gel column to obtain compound 273, the elemental analysis structure ( Molecular formula C 49 h 30 N 2 o 2 ): theoretical value C, 86.71; H, 4.46; N, 4.13; test value: C, 86.70; H, 4.45; N, 4.14. LC-MS: The theoretical value is 678.23, and the measured value is 678.47. 1 H NMR (400MHz, Chloroform-d) δ7.96–7.90(m,5H),7.85–7.79(m,1H),7.78–7.72(m,2H),7.66(s,1H),7.65–7.59(m ,2H),7.55(dd,1H),7.50(s,1H),7.44(ddd,2H),7.41–7.33(m,9H),7.28(s,1H),7.13(d,3H),7.09...

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Abstract

The invention relates to an organic compound containing a xanthone or thioxanthone structure, and belongs to the technical field of semiconductors. The structure of the organic compound is shown as a general formula (1), the compound has a space CT effect, and through device structure optimization, the photoelectric property of an OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, and relates to a new xanthone or thioxanthone organic compound and its use as an organic light-emitting functional material, and an organic electroluminescent organic compound with a light-emitting layer containing this type of structural material. Light emitting devices. Background technique [0002] Organic electroluminescent (OLED: Organic Light Emission Diodes) device technology can be used to manufacture new display products and also can be used to make new lighting products, which is expected to replace the existing liquid crystal display and fluorescent lighting, and has a wide application prospect. The OLED light-emitting device is like a sandwich structure, including electrode material film layers, and organic functional materials sandwiched between different electrode film layers. Various functional materials are superimposed on each other according to the application to f...

Claims

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Application Information

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IPC IPC(8): C07D405/14C07D491/048C07D409/14C07D487/04C07D413/14C07D417/14C07D495/04C07D405/10C07D413/10C07D417/10C07D409/10C07D407/10C07D407/14C07D411/14C07D471/04C09K11/06H01L51/50H01L51/54
CPCC07D405/14C07D491/048C07D409/14C07D487/04C07D413/14C07D417/14C07D495/04C07D405/10C07D413/10C07D417/10C07D409/10C07D407/10C07D407/14C07D411/14C07D471/04C09K11/06C09K2211/1029C09K2211/1088C09K2211/1033C09K2211/1037C09K2211/1092C09K2211/1025C09K2211/1044H10K85/615H10K85/657H10K85/6574H10K85/6576H10K85/6572H10K50/11
Inventor 张小庆陆颖曹旭东张兆超李崇
Owner JIANGSU SUNERA TECH CO LTD