9-phenyl-substituted fluorene derivative, and preparation method and application thereof
A technology of phenyl substitution and derivatives, which is applied in the field of organic compound synthesis, can solve the problems of few reports on orange and red phosphorescent materials, and achieve good electroluminescence efficiency, simple synthesis route, and excellent thermal stability
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[0044] Embodiments of the present invention are further described below in conjunction with the accompanying drawings:
[0045] The present invention designs and synthesizes a class of blue-light host materials with high-efficiency fluorescence emission, the basic structural framework of which is 1,4-bis(9-phenylfluorene)-phenylene, and naphthylaniline as a derivative of functional substituent groups. The molecular structure and configuration of this series of materials were characterized by mass spectrometry (EIMS or TOF), H NMR, C NMR and so on. The photophysical properties of the compounds were studied by UV absorption spectroscopy. The electrochemical properties of the compounds were studied by cyclic voltammetry. The thermodynamic properties of the compounds were studied by differential thermal-differential gravimetric analysis (DTA-TGA).
[0046] 1. The synthetic route is shown in formula 1 below.
[0047] Synthesis of 1,4-bis(9-p-bromophenylfluorene)benzene (DBPFB). ...
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