have a large tetraazaacene subunit and a quinoxaline subunit connected through a four‐membered ring, is reported. They were studied with experimental and computational methods in comparison to the corresponding tetraazaacenes. As found from the DFT calculation, the four‐membered ring is a better linker than a five‐membered ring or a C−C single bond to extend N‐heteroacenes for a new design of n‐type semiconductors
据报道,合成了新型的π-扩展的N-杂
蒽,它具有一个大的四氮杂ac烯亚基和一个通过四元环连接的
喹喔啉亚基。与相应的四氮杂并烷相比,用实验和计算方法对它们进行了研究。从DFT计算中可以发现,四元环比五元环或C-C单键更好的连接子,可以在空间离域和空间分布方面为新的n型半导体设计扩展N-杂并苯。 LUMO的能量
水平以及
重组能量。在溶液处理的薄膜晶体管中,发现π扩展的N-杂
十六烷可用作n型半导体,场效应迁移率高达0.02 cm 2 V -1 s -1 在环境条件下。