Through the synthesis of both ends thereof connected to the first 4-fluoro-3- (trifluoromethyl) phenylboronic acid forming precursor material F., P material, <br>then after carbazolyl groups bonded to it bilateral,
By synthetic means of first connected to its ends 4-fluoro-3- (trifluoromethyl) benzene-based boric acid formation precursor material F, material P,<br>and then attach the ketogroupa to its bilateral,
The precursor material f and material P are formed by connecting 4-fluoro-3 - (trifluoromethyl) phenylboric acid at both ends of the precursor material,<br>Then, the carbazole group is connected to its two sides,<br>