Metallo-Supramolecular Coordination Polymers Based on Amidopyridine Derivatives of Pillar[5]arene and Cu(II) and Pd(II) Cations: Synthesis and Recognition of Nitroaromatic Compounds

Decasubstituted pillar[5]arenes containing amidopyridine fragments have been synthesized for the first time. As was shown by UV-vis spectroscopy, with p-amidopyridine form supramolecular associates Cu(II) and Pd(II) cations in methanol a 2:1 ratio. Using sol-gel approach these are transformed into metallo-supramolecular coordination polymers (supramolecular gels) which were characterized as amorphous powders scanning electron microscopy (SEM) dynamic light scattering (DLS). The able to selectively adsorb up 46% of nitrophenols from water incorporated an electrochemical sensor recognize them aqueous acidic solution.