Complex and OLED (organic light emitting diode) with same
A technology of organic light-emitting devices and complexes, which is applied in the fields of light-emitting materials, organic chemistry, and electric solid-state devices, and can solve the problems of high driving voltage, low light-emitting efficiency, and poor thermal stability.
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Embodiment 1
[0071] Embodiment 1: the preparation of compound 1
[0072]
[0073] Preparation of Intermediate A1
[0074] Dissolve 1.66 g (10.5 mmol) of 2,3-diaminonaphthalene and 1.4 g (10.0 mmol) of 1-phenyl-1,2-propanedione in 30 ml of absolute ethanol, and stir at reflux for 5 hours. After cooling to room temperature, the resulting solution was concentrated and separated by column chromatography, using petroleum ether / ethyl acetate=12 / 1 as the eluent, to obtain a yellow solid powder with a yield of 80%, and compound intermediate A1 was obtained.
[0075] Preparation of Intermediate B1
[0076] In a 1L three-necked flask, iridium trichloride hydrate (14.11g, 40mmol) and intermediate A1 (27.23g, 170mmol) were added, then 300mL of 2-ethoxyethanol and 100mL of water were added, and the mixture was refluxed overnight under a nitrogen atmosphere. After the reaction, the temperature was lowered to room temperature, the precipitate was filtered, washed with methanol, and dried to obtain i...
Embodiment 2
[0081] Embodiment 2: the preparation of compound 10
[0082] The b1 in Example 1 was replaced by equimolar b10, and the other steps were the same as in Example 1 to obtain the target compound 10 (5.59 g, 29%).
[0083]
[0084] Mass Spectrum m / z: 963.38 (calculated: 963.37). Theoretical element content (%)C 53 h 50 IrN 6 : C, 66.09; H, 5.23; Ir, 19.96; N, 8.72 Measured element content (%): C, 66.09; H, 5.22; Ir, 19.97; N, 8.72. The above results confirmed that the obtained product was the target product.
Embodiment 3
[0085] Embodiment 3: the preparation of compound 29
[0086] The c1 (bromobenzene) in Example 1 was converted into equimolar c29 (isopropyl bromide), and the other steps were the same as in Example 1 to obtain the target compound 29 (5.23 g, 29%).
[0087]
[0088] Mass Spectrum m / z: 901.37 (calculated: 901.36). Theoretical element content (%)C 48 h 48 IrN 6 : C, 63.98; H, 5.37; Ir, 21.33; N, 9.33 Measured element content (%): C, 63.99; H, 5.36; Ir, 21.33; N, 9.33. The above results confirmed that the obtained product was the target product.
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