A series of novel tetraphenylethylene aromatic acylhydrazone derivatives 11, 12 and 13 with 4, 8 or 12 alkyl chains were designed and synthesized in yields of 82–85%. Studies on the mesomorphic properties suggested the ordered hexagonal columnar mesophase for compounds 11, 12 and 13. The increase in the number of alkyl chains was favourable for decreasing the phase-transition temperatures and extending the mesophase temperature range. Further, samples 11, 12 and 13 presented an excellent AIE effect. The fluorescence intensities increased by 70, 84 and 43 times for samples 11, 12 and 13, respectively. The absolute fluorescence quantum yields were 18.7%, 27.4% and 23.8% in solid films at room temperature and 6.7%, 24.2% and 17.3% in the mesophase. These results suggested that the number of alkyl chains greatly influenced the fluorescence emission and sample 12 with 8 alkyl chains exhibited the strongest fluorescence emission. Sample 12 also displayed the electroluminescence performance on OLED device.

一系列新颖的四苯基芳香族酰腙衍生物的11，12和13具有4个，8个或12个的烷基链，设计并在82-85的％的收率合成。研究介晶性能的建议化合物有序六角柱状相11，12和13。烷基链数目的增加有利于降低相转变温度并扩展中间相温度范围。另外，样品11，12和13呈现优异的效果AIE。样品11的荧光强度分别增加了70、84和43倍，分别为12和13。室温下固体膜的绝对荧光量子产率为18.7％，27.4％和23.8％，而中间相的绝对荧光量子产率为6.7％，24.2％和17.3％。这些结果表明，烷基链的数量极大地影响了荧光发射，具有8个烷基链的样品12表现出最强的荧光发射。样品12还显示了OLED器件的电致发光性能。