Two series of bent-core hexacatenars containing a diphenyl ketone/diphenylmethylene malononitrile as central group and two α-cyanostilbene units as molecular arm were synthesized by Suzuki coupling and Knoevenagel reactions. The effect of the central groups on the liquid crystalline and photophysical behaviors was investigated in detail. POM, DSC and XRD results indicated that all the compounds could self-assemble into hexagonal columnar mesophases and diphenylmethylene malononitrile-based hexacatenars show much wider range of mesophase. The introduction of malononitrile unit into aromatic core could induce more distinct solvatochromic effect. Both series of hexacatenars show aggregation-induced emission enhancement (AIEE) behaviors and the fluorescence intensity is affected by the size of spherical aggregates in the aggregated state. Additionally, the maximum emission bands, fluorescence intensity and fluorescence color in condensed state showed obvious transition upon rising temperature.

通过 Suzuki 偶联反应和 Knoevenagel 反应合成了两个系列的以二苯基酮/二苯基亚甲基丙二腈为中心基团和两个 α-氰基二苯乙烯单元为分子臂的弯曲核六连环化合物。详细研究了中心基团对液晶和光物理行为的影响。POM、DSC和XRD结果表明，所有化合物都可以自组装成六方柱状中间相，二苯基亚甲基丙二腈基六连环显示出更广泛的中间相范围。将丙二腈单元引入芳香核可以诱导更明显的溶剂致变色效应。两个系列的六链都表现出聚集诱导发射增强 (AIEE) 行为，荧光强度受聚集状态下球形聚集体大小的影响。此外，