Novel phosphor iridium complexes as well as preparation method and application thereof
A technology of phosphorescent iridium complexes and iridium complexes, applied in indium organic compounds, platinum group organic compounds, chemical instruments and methods, etc., can solve the problems of short phosphorescent lifetime and complex synthesis steps, and achieve easy stimulation signals and material synthesis Simple, novel structure effect
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Embodiment 1
[0038] Example 1: Synthesis of Molecule 1
[0039] Weigh molecule 1 (4.2mmol, 1g), phenylboronic acid (4.2mmol, 515mg), potassium carbonate (8.4mmol, 1165mg) and tetrakis(triphenylphosphine)palladium (0.2mmol, 240mg) on an analytical balance, and add to In a 150ml round-bottomed flask, vacuumize, blow nitrogen, and circulate three times. A mixed solution of acetonitrile and methanol (2:1, v / v) was injected under nitrogen atmosphere after deoxygenation for 30 minutes, stirred to dissolve, and then reacted at 50° C. for 24 h. After the reaction, cool to room temperature. Filtration gave a solid. The product was separated and purified by column chromatography with PE:DCM=10:1 as the eluent, and the product was a yellow liquid.
Embodiment 2
[0040] Example 2: Synthesis of Molecule 2
[0041] Molecule 1 (2mmol, 466mg) and iridium trichloride trihydrate (1mmol, 352mg) were weighed and added into a round bottom flask, vacuumed and nitrogen blown, and circulated three times. Under a nitrogen atmosphere, inject 16 mL of a mixed solution of ethylene glycol ether and water (3:1, v / v), and stir to dissolve it. After reacting at 110° C. for 24 hours, the crude product was cooled to room temperature, filtered through a sand core funnel to obtain a solid, and washed three times with deionized water and ethanol. The product was obtained after drying in a vacuum oven.
Embodiment 3
[0042] Example 3: Synthesis of Molecule 3
[0043]Weigh molecule 2 (0.3mmol, 420mg) and 2,2-bipyridine (0.6mmol, 94mg) into a round bottom flask, vacuumize, blow nitrogen, and cycle three times. Under a nitrogen atmosphere, inject 30 mL of a mixed solution of dichloromethane and methanol (2:1, v / v), and stir to dissolve it. After reacting at 50°C for 4 hours, after the crude product was cooled to room temperature, potassium hexafluorophosphate was added, and after stirring at room temperature for 2 hours, the crude product was distilled off under reduced pressure to remove the solvent, and the product was used in a silica gel column for column chromatography Separation separation.
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