Fig. 2: The structures of Linear [3]catenanes.
![Fig. 2: The structures of Linear [3]catenanes.](http://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41467-026-69503-z/MediaObjects/41467_2026_69503_Fig2_HTML.png)
a Chemical structures of Linear [3]catenanes 1(OTf)12, 2(OTf)12, and 3(OTf)12; b Molecular structure of Linear [3]catenanes 1(OTf)12; c Front view, d side view, and e space-filling representations of Linear [3]catenane 1(OTf)12 showing π···π stacking interactions and the front and side distances. Most hydrogen atoms, anions and solvent molecules are omitted for clarity (N, blue; O, red; C, grey; S, yellow; Ru, aqua).