Carmine Gaeta, Carmen Talotta and Placido Neri
Chem. Commun., 2014,50, 9917-9920
DOI:
10.1039/C4CC04668D,
Communication
Pseudo[2]rotaxane orientational isomers were formed in a stereocontrolled way by exploiting the electron-withdrawing (EW) or electron-donating (ED) effects of para-substituted dibenzylammonium axles threaded through the π-electron rich calixarene cavity, which allow the fine tuning of the weak π–π interactions.