Aromatic anion recognition by a self-assembled receptor in water

Self-assembly of (1R,2R)-diaminocyclohexane derived bis(4-pyridyl)-substituted bidentate ligand L* by Pd(II) ion complexation leads to a water-soluble chiral receptor 1. The new chiral receptor turns out to bind naphthalene derivatives bearing tethered carboxylate groups due to the entropically driven host–guest complexation process.