Connecting two phenazines with a four-membered ring: the synthesis, properties and applications of cyclobuta[1,2-<i>b</i>:3,4-<i>b</i>′]diphenazines
作者:Shuaijun Yang、Ming Chu、Qian Miao
DOI:10.1039/c7tc04092j
日期:——
Herein we report cyclobuta[1,2-b:3,4-b′]diphenazine (CBDP), a new π-electron molecular scaffold containing two phenazine moieties connected by a four-membered ring. With properly positioned silylethynyl substituting groups, CBDP offers a chromophore with a large molar extinction coefficient, a luminophore with a good quantum yield, and an n-type organic semiconductor with a field effect mobility as
在这里,我们报告cyclobuta [1,2- b:3,4- b '] diphenazine(CBDP),一种新的π电子分子支架,包含两个通过四元环连接的吩嗪部分。具有适当位置的甲硅烷基乙炔基取代基,CBDP可提供具有大摩尔消光系数的发色团,具有良好量子产率的发光体和场效应迁移率高达0.30 cm 2 V -1 s -1的n型有机半导体。这些性质在吩嗪参考化合物中不可用,但是可以通过调整甲硅烷基乙炔基的取代位置来调整。根据单晶结构,UV-vis吸收和DFT计算,得出的结论是CBDP中的两个吩嗪亚基在基态下共轭程度低,而在激发态下强共轭程度,这说明了四-成员环共轭。