Dendritic ionic iridium complex containing host-guest structure and preparation method and application
A technology of iridium complexes and main structures, applied in the field of dendritic ionic iridium complexes, can solve the problems of affecting the stability and life of devices, the similarity of complexes is too large, and it is not easy to design, so as to improve compatibility. , The effect of realizing large-scale industrialization and reducing processing costs
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Embodiment 1
[0034] Example 1: When X is N, Y 1 , Y 2 , Y 3 , Y 4 For tert-butyl, when n=4, the preparation of the neutral N^N auxiliary ligand containing the main structure:
[0035]
[0036] Synthesis of 2CZTRZ: First weigh 3,6-di-tert-butyl-9H-carbazole (1.4g, 8.5mmol) and place it in a 100mL three-neck flask A, vacuumize and nitrogen cycle three times, then add 50mLTHF solution to dissolve, Place the three-neck flask A in a dry ice bath of acetone, add 5 mL of butyl lithium solution dropwise at low temperature, and lithiate for 10 min. Also weigh 2,4,6-trichloro-1,3,5-triazine (0.74g, 4.0mmol) and place it in a 50mL three-neck flask B, vacuumize and fill with nitrogen three times, then add 20mL THF solution to dissolve. Take out the solution in bottle A and add it drop by drop to bottle B, and the dropwise addition is completed within 10 minutes. The temperature of the device was raised to 70°C, and the reaction was refluxed for 6h. The whole reaction process is strictly anhyd...
Embodiment 2
[0043] Example 2: When (dfppy), when the neutral N^N auxiliary ligand is 2CZTRZIZPY, the preparation of dendritic ionic iridium complex 1 with host-guest structure:
[0044]
[0045] Weigh 185.8mg, 0.2mmol of the N^N auxiliary ligand 2CZTRZIZPY containing the main structure and 133.7mg, 0.11mmol of the dichloro bridge intermediate of the raw material dfppy in a 50mL three-necked flask, vacuumize and nitrogen cycle three times, add CH 2 Cl 2 : MeOH=3:1 mixed solution 4mL reflux reaction for 4h; cooled to room temperature, added 147.25mg, 0.8mmol potassium hexafluorophosphate, reacted at room temperature for 4h, the product was spin-dried and passed through the column, the yield was 30%. 1 HNMR (400MHz, CDCl 3 )δ8.63(d,J=8.8Hz,4H),8.27(d,J=7.8Hz,3H),8.02(d,J=1.8Hz,5H),7.90(s,1H),7.76(s, 3H),7.54(d,J=16.0Hz,1H),7.41(dd,J=8.9,1.8Hz,4H),7.37(d,J=7.3Hz,1H),7.30(d,J=6.8Hz, 3H),7.08(s,4H),6.62(s,1H),6.53(dd,J=22.1,10.8Hz,2H),5.70(dd,J=27.0,7.5Hz,2H),4.80(s,2H ), 4.20(s, 2H), ...
Embodiment 3
[0046] Example 3: when (dfpypy), when the neutral N^N auxiliary ligand is 2CZTRZIZPY, the preparation of dendritic ionic iridium complex 2 with host-guest structure:
[0047] Weigh 185.8mg, 0.2mmol of the N^N auxiliary ligand 2CZTRZIZPY containing the main structure and 134mg, 0.11mmol of the dichloro bridge intermediate of the raw material dfpypy in a 50mL three-neck flask, vacuumize and nitrogen cycle three times, add CH2Cl2:MeOH =3:1 mixed solution 4mL reflux reaction for 4h; cooled to room temperature, added 147.25mg, 0.8mmol potassium hexafluorophosphate, reacted at room temperature for 4h, the product was spin-dried and passed through the column, the yield was 30%. 1 HNMR (400MHz, CDCl 3 )δ8.63(d,J=8.7Hz,4H),8.33(d,J=8.3Hz,1H),8.28(d,J=8.3Hz,2H),8.08–7.98(m,5H),7.93– 7.82(m,3H),7.77(d,J=5.7Hz,1H),7.64(d,J=5.5Hz,1H),7.41(d,J=7.4Hz,5H),7.36–7.27(m,4H ),7.23(d,J=6.3Hz,1H),7.08(d,J=8.8Hz,2H),6.65(s,1H),5.70(d,J=26.9Hz,2H),4.80(d,J =4.2Hz,2H),4.18(d,J=5.4Hz,2H),2.33–2....
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