Monomer for organic electro-phosphorescent polymer
A technology of electrophosphorescence and polymers, which is applied in the field of monomers for organic electrophosphorescence polymers, and can solve the problem of few types of monomers
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Embodiment 1
[0024] Example 1: Preparation of compound bis[2,5-bis(4'-ethylphenyl)pyridine](1-methyl-13-tetradecene-2,4-dione) iridium (deppy) 2 Ir(bsh)
[0025] 1.1 Synthetic route
[0026]
[0027] 1.2 Synthesis steps
[0028] 1.2.1 Bis[2,5-bis(4'-ethylphenyl)pyridine] iridium chloride (deppy) 4 Ir 2 Cl 2 Synthesis
[0029] Under the protection of nitrogen, add 1.00g (2.836mmol) IrCl to the 250ml three-necked flask 3 ·3H 2 O, 1.63g (5.679mmol) 2,5-bis(4',4'-diethylphenyl)pyridine, 80ml ethylene glycol ether and 20ml water. Stir and heat to 120°C and reflux for 24 hours, cool to room temperature, add 100ml of water, filter, and rinse the filter cake with 50ml of methanol to obtain (deppy) 4 Ir 2 Cl 2 2.15g, directly used in the next reaction.
[0030] 1.2.2 Synthesis of 1-methyl-13-tetradecene-2,4-dione (bsh)
[0031] In a 250 mL three-necked flask, 9.3 g of potassium tert-butoxide, 5.0 g of acetone, and 12.9 g of hexyl undecylenate were sequentially added, and stirred at ...
Embodiment 2
[0044] Example 2: Preparation of compound bis[2,5-bis(4'-ethylphenyl)pyridine][1-(N-ethyl-3-carbazolyl)-13-tetradecene-2,4 - diketone] iridium (deppy) 2 Ir(ksh)
[0045] 2.1 Synthetic route
[0046]
[0047] 2.2 Synthesis steps
[0048] According to the synthesis of 1.2 in Example 1, a red solid was obtained.
[0049] 2.3 Structural characterization
[0050] NMR spectrum ( 1 H-NMR, CDCl 3 , 500MHz, δ(ppm)): 6.685-8.928 (27H, benzene ring / pyridine ring H); 4.901-6.303 (4H, C=CH); 4.291-4.334 (2H, N-CH 2 ); 2.666-2.711 (2H, CH 2 -β-diketone); 2.136-2.516 (8H, CH 2-benzene ring); 1.250-1.992 (14H, long chain alkane H); 1.012-1.091 (15H, CH 3 -CH 2 -benzene ring).
[0051] Infrared spectrum (KBr, cm -1 ): 3029 (=CH); 1640 (C=C); 1586, 1555, 828, 811 (phencyclopyridine ring H); 2960, 2926, 2853, 1479 (-CH).
[0052] Elemental analysis:
[0053] Calculated value (%): C: 70.98, H: 6.22, N: 3.60;
[0054] Found value (%): C: 70.94; H: 6.24, N: 3.63.
[0055] Mass sp...
Embodiment 3
[0059] Example 3: Preparation of compound bis[2,5-bis(4'-ethylphenyl)pyridine][1-(9,9-dihexyl-2-fluorenyl)-13-tetradecene-2, 4-diketone] iridium
[0060] 3.1 Synthetic route
[0061]
[0062] 3.1 Synthesis steps
[0063] According to the synthesis of 1.2 in Example 1, a red solid was obtained.
[0064] 3.2 Structural characterization
[0065] NMR spectrum ( 1 H-NMR, CDCl 3 , 500MHz, δ(ppm)): 7.045-8.875 (27H, benzene ring / pyridine ring H); 4.909-6.301 (4H, C=CH); 2.670-2.716 (2H, CH2-β-diketone); 2.108-2.565 (8H, CH2-benzene ring); 1.003-1.995 (52H, long-chain alkane H).
[0066] Infrared spectrum (KBr, cm -1 ): 3028 (=CH); 1638 (C=C); 1585, 1551, 827, 810 (phencyclopyridine ring H); 2961, 2924, 2851, 1477 (-CH).
[0067] Elemental analysis:
[0068] Calculated value (%): C: 73.53, H: 7.17, N: 2.14;
[0069] Found values (%): C: 73.55, H: 7.13, N: 2.18.
[0070] Mass spectrum: (1306.6M + ).
[0071] The above data confirm that the compound obtained by the abo...
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