Triazine exciplex material based on phosphine oxide and carbazole, and preparation method and application thereof
A technology of exciplexes and triazines, which is applied in the field of triazine exciplex materials based on phosphine oxide and carbazole and its preparation and application, and can solve the problem of few blue light exciplex acceptor materials , to achieve the effect of maintaining blue light emission, increasing types, and high luminous efficiency
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specific Embodiment approach 1
[0063] Specific embodiment one: The triazine exciplex material based on phosphine oxide and carbazole in this embodiment has a structure of:
[0064]
[0065]
specific Embodiment approach 2
[0066] Specific embodiment two: the preparation method of the triazine exciplex material based on phosphine oxide and carbazole described in specific embodiment one is carried out according to the following steps:
[0067] 1. Mix monobromotriphenyltriazine, carbazole compounds, anhydrous K 2 CO 3 Add CuI to 1,3-dimethyl-2-imidazolidinone (DMI) and mix, and react at 100-200°C for 24-48 hours under the protection of argon; after the reaction is completed, pour the reaction mixture into water, reduce The solid obtained by pressure suction filtration was dissolved with dichloromethane, washed three times with water, and the organic layer was washed with anhydrous Na 2 SO 4 Drying and spin-drying; the crude product is separated and purified by column chromatography using a mixture of petroleum ether: ethyl acetate = 10:1 as an eluent to obtain an intermediate compound; wherein in step 1, a bromotriphenyltriazine is o-bromo Triphenyltriazine, m-bromotriphenyltriazine or p-bromotr...
specific Embodiment approach 3
[0070] Specific embodiment three: the difference between this embodiment and specific embodiment two is that in step one, monobromotriphenyltriazine and anhydrous K 2 CO 3 The molar ratio of bromotriphenyltriazine to CuI is 1: (0.3-40); the molar ratio of bromotriphenyltriazine to CuI is 1: (0.01-0.1); the others are the same as in the second embodiment.
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