tlct_a_2281632_sm2270.pdf (5.31 MB)
Liquid-crystalline pillar[5]arene-based [2]rotaxanes
journal contribution
posted on 2023-11-20, 23:40 authored by Pauline Pieper, Yassine Chadi, Iwona Nierengarten, Uwe Hahn, Eric Meichsner, Thi Le Anh Nguyen, Joaquín Barberá, Robert Deschenaux, Jean-François NierengartenLiquid-crystalline mechanically interlocked molecules have been prepared from a clickable pillar[5]arene-containing [2]rotaxane building block incorporating ethynylated stoppers and dendritic mesogenic subunits of generation 0, 1 and 2 under copper-catalysed alkyne-azide cycloaddition conditions. The liquid-crystalline properties of the resulting pillar[5]arene-based rotaxanes bearing 4, 8 and 16 peripheral cyanobiphenyl units have been investigated and compared to those of corresponding model compounds lacking the macrocyclic component.