Manganaro Nadia, Lando Gabriele, Gargiulli Claudia, Pisagatti Ilenia, Notti Anna, Pappalardo Sebastiano, Parisi Melchiorre F, Gattuso Giuseppe
Dipartimento di Scienze Chimiche, Università di Messina, viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
Chem Commun (Camb). 2015 Aug 14;51(63):12657-60. doi: 10.1039/c5cc04079e.
The first water-soluble polycationic oxacalix[4]arene molecular tweezers able to recognize - under pH control - the paraquat dication as a result of a delicate balance between electrostatic repulsion, Coulombic shielding and attractive π-stacking interactions are reported.