高等学校化学研究 ›› 2013, Vol. 29 ›› Issue (3): 495-499.doi: 10.1007/s40242-013-2288-3
WANG Dong, MI Yong-sheng, TANG Jian-kai, LIANG Peng-xia, JIN Zhao-kui, YANG Zhou, YANG Huai
WANG Dong, MI Yong-sheng, TANG Jian-kai, LIANG Peng-xia, JIN Zhao-kui, YANG Zhou, YANG Huai
摘要:
A series of triphenylene derivatives with six symmetric substituents was synthesized from hexabromotriphenylene. The synthesis was conducted by six-fold palladium-catalyzed Hagihara-Sonogashira cross- coupling reactions to yield the hexa-alkynyl substituted triphenylene derivatives of HTP1, HTP2, HTP3 and HTP4. The six symmetric substituents can not only endow the triphenylene the longer π-conjugated range, but also increase the solubility of the compounds. Their photophysical, electrochemical, thermal properties were investigated respectively. With the comparison of their properties, the structure-property relationships were established which demonstrated the influences of different substituents on the electronic nature and the mesomorphic phase of these disk-shaped molecules. In addition, with the scanning electron microscopy(SEM) and polarized optical microscopy(POM) characterization, the self-assembly behaviors of the compounds were also investigated.