|
|
|
| Synthesis and Photoelectric Properties of 4,7-Dithiophen-［2,1,3］benzoselenadiazole |
| CHENG Qing1, ZHU Wen-kai2, WANG Zi-xiao1, WEN Qing-zhen1 |
| 1.Faculty of Science, Naval University of Engineering, Wuhan 430033, China； 2. Wuhan Inspection， Hubei Frontier Corps, Wuhan 430023, China |
|
|
|
|
Abstract 4,7-Dibromo［2,1,3］benzoselenadiazole (3) was obtained by bromination, reduction and ring-closing reaction, using benzothiadizaole as the starting material. The novel compound, 4,7-dithiophen-［2,1,3］benzoselenadiazole（5）, was synthesized by Stille coupling reaction of 3 with 2-tributyl stannane thiophene（4）. The structure and photoelectric properties of 5 were characterized by 1H NMR, 13C NMR, UV-Vis, fluorescence and cyclic voltammetry. The results showed that 5 had broad absorption spectrum（260 nm～487 nm） and a low band gap（12.2 eV）, strong emission peak(620 nm), reversible redox curve and stable electrochemical property.
|
|
Received: 01 December 2014
|
|
|
|
|
|
|
2015, Vol. 23 
