Synthesis and spectroscopic properties of a series of hyperbranched conjugated molecules with 1,3,5-triphenylbenzene as cores
作者:Qingguo He、Hongmin Huang、Junlin Yang、Hongzhen Lin、Fenglian Bai
DOI:10.1039/b210297h
日期:2003.4.16
A series of conjugated hyperbranched molecules with 1,3,5-triphenylbenzene rings as cores and with different connecting groups have been synthesized. Their structures were characterized by FTIR, 1H-NMR and 13C-NMR. These molecules exhibit good solubility and film-forming ability. In particular, they have high thermal stability (TID > 350 °C). The spectroscopic properties of these molecules were studied both in solution and as spin-coated films. The twisted intramolecular charge transfer (TICT) state was observed in hyperbranched molecules containing triphenylamine as the connecting unit. Light emitting devices (ITO/PEDOT/hyperbranched molecule/Ba/Al) have been fabricated.
合成了一系列以1,3,5-三苯基苯环为核心、具有不同连接基团的共轭超支化分子。通过FTIR、1H-NMR和13C-NMR对其结构进行了表征。这些分子表现出良好的溶解性和成膜能力。尤其是,它们具有很高的热稳定性(TID > 350 °C)。这些分子的光谱特性在溶液中和作为旋涂膜中进行了研究。在含有三苯胺作为连接单元的超支化分子中观察到了扭曲的分子内电荷转移(TICT)状态。已制造出发光器件(ITO/PEDOT/超支化分子/Ba/Al)。