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Novel organic material and application thereof
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An organic material, electromechanical technology, applied in the field of organic electroluminescence display
Inactive Publication Date: 2020-07-17
北京燕化集联光电技术有限公司
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Problems solved by technology
However, there is still much room for improvement in the luminescence performance of existing organic electroluminescent materials, and the industry urgently needs to develop new organic electroluminescent materials.
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[0065] In a 1L three-necked flask, add M1 (43.4g, 0.1mol, purity 99%), (4-phenylquinazolin-2-yl) boric acid (50g, 0.2mol, purity 99%), sodiumcarbonate (53g ,0.5mol), toluene 150mL, ethanol 150mL, water 150mL, the reaction system was protected by nitrogen replacement and added Pd(PPh 3 ) 4 (11.5 g, 0.01 mol). Heat to reflux for 3 hours to stop the reaction (the temperature in the system is about 78°C). Liquid separation, extraction, drying, filtration, column chromatography, and spin-drying of the solvent gave 51.3 g of a light yellow solid with a yield of about 75%.
[0066] Product MS (m / e): 684.23; Elemental analysis (C 50 h 28 N 4 ): theoretical value C: 87.70%, H: 4.12%, N: 8.18%; measured value C: 87.71%, H: 4.12%, N: 8.17%.
[0072] With (4-(4-phenylquinazolin-2-yl) phenyl) boronic acid and M2, equivalent equivalents replace (4-phenylquinazolin-2-yl) boronic acid and M1 described in embodiment 1 respectively , other reaction conditions and operations were the same as in Example 1 to obtain 69.4 g of a light yellow solid with a yield of about 83%.
[0073] Product MS (m / e): 836.29; Elemental analysis (C 62 h 36 N 4 ): theoretical value C: 88.97%, H: 4.34%, N: 6.69%; measured value C: 88.95%, H: 4.36%, N: 6.69%.
[0079] With (4-phenylquinazolin-2-yl) boronic acid and M3, equivalent equivalents replace (4-phenylquinazolin-2-yl) boronic acid and M1 described in embodiment 1 respectively, other reaction conditions and operation All the same as in Example 1, 52.0 g of a light yellow solid was obtained, and the yield was about 76%.
[0080] Product MS (m / e): 684.23; Elemental analysis (C 50 h 28 N 4 ): theoretical value C: 87.70%, H: 4.12%, N: 8.18%; measured value C: 87.71%, H: 4.12%, N: 8.17%.
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Abstract
The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel organic material with an indenofluoranthene structure, and also discloses an application of the organic material in an organic electroluminescent device. The novel organic material with an indenofluoranthene structure provided by the invention is shown as a general formula (I), the indenofluoranthene structure compound is used as a parent nucleus, and the organic material has high electron mobility, good film stability, proper molecular energy level and good thermal stability, canbe applied to the field of organic electroluminescence, and can be used as an electron transport material. The novel organic material with an indenofluoranthene structure provided by the invention can be well applied to an OLED device, and the device has the advantages of low driving voltage and high luminous efficiency.
Description
technical field [0001] The invention relates to the technical field of organic electroluminescent display, in particular to a novel organic material with indenofluoranthene structure, and also relates to its application in organic electroluminescent devices. Background technique [0002] The application of organic electroluminescent (OLED) materials in information display materials, organic optoelectronic materials and other fields has great research value and bright application prospects. With the development of multimediainformation technology, the performance requirements of flat panel display devices are getting higher and higher. At present, the main display technologies include plasma display devices, field emission display devices and organic electroluminescent display devices (OLED). Among them, OLED has a series of advantages such as self-luminescence, light and thin power saving, full curing, wide viewing angle, and rich colors. Compared with liquid crystal displ...
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