A kind of electron transport material and its preparation and device
A technology of electron transport and compounds, applied in the direction of electric solid devices, electrical components, luminescent materials, etc., can solve the problem that carbazole-based luminescent materials cannot meet the requirements of OLED, and meet the needs of industrial development, good planar structure and common Yoke system, effect of improving luminance
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Embodiment 1
[0037]
[0038]Put 0.3100mol of iodobenzene, 0.2400mol of carbazole, 0.0218mol of o-phenanthroline, 0.0218mol of cuprous iodide, and 0.3600mol of cesium carbonate into a 1000ml three-necked flask, add 300ml of DMF to dissolve, vacuum-purge three times with nitrogen, and heat up to React overnight at 150°C, pass the reaction solution through a silica gel funnel, rinse with dichloromethane until no product dissolves, spin to about 400ml, wash with 500ml of water, separate liquids, take the dichloromethane phase, wash with water three times, spin dry, add 100ml to dissolve , adding 500ml of ethanol, a large amount of solids precipitated out, suction filtered, and vacuum dried at 55°C to obtain 0.2096mol of N-phenyl-9H-carbazole with a yield of 87.63%. The mass spectrum of the obtained product: The theoretical value is 243.30; the tested value is 243.20. Elemental analysis: The theoretical value is C: 88.86; H: 5.39; N: 5.76; the test value is C: 88.84; H: 5.40; N: 5.77.
[00...
Embodiment 2
[0043]
[0044] Put 0.2600mol of p-methyliodobenzene, 0.2400mol of carbazole, 0.0218mol of o-phenanthroline, 0.0218mol of cuprous iodide, and 0.3600mol of cesium carbonate into a 1000ml three-necked flask, add 300ml of DMF to dissolve, vacuumize and blow nitrogen three times , heated up to 151°C, and reacted overnight. Pass the reaction solution through a silica gel funnel, rinse with dichloromethane until no product dissolves, spin to about 400ml, wash with 500ml of water, separate the liquid, take the dichloromethane phase, wash with water three times; spin dry, add 100ml to dissolve, add 500ml of ethanol to have a large amount A solid precipitated out, was filtered with suction, and dried under vacuum at 55°C. 0.2088 mol of 9-p-methylphenyl-9H-carbazole was obtained with a yield of 87.00%. The mass spectrum of the product obtained: The theoretical value is 257.33; the measured value is 257.30. Elemental analysis: The theoretical value is C: 88.68; H: 5.88; N: 5.44; the...
Embodiment 3
[0049]
[0050] Put 0.288mol of 3,4-dimethyliodobenzene, 0.24mol of carbazole, 0.02mol of phenanthroline, 0.02mol of cuprous iodide, and 0.384mol of cesium carbonate into a 1000ml three-necked flask, add 300ml of DMF to dissolve, and vacuumize - Pass nitrogen three times, heat up to 152° C., and react overnight. Pass the reaction solution through a silica gel funnel, rinse with dichloromethane until no product dissolves; spin to about 400ml, wash with 500ml of water, separate liquids, take the dichloromethane phase, wash with water three times; spin dry, add 100ml to dissolve, add 500ml of ethanol to have a large amount A solid precipitated out, was filtered with suction, and dried under vacuum at 55°C. 0.2136 mol of 9-(3,4-dimethylbenzene)-9H-carbazole was obtained with a yield of 89.00%. The mass spectrum of the obtained product: the theoretical value is 271.36; the tested value is 271.34. Elemental analysis: The theoretical value is C: 88.52; H: 6.31; N: 5.16; the test...
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