Synthesis and extraction ability of amide derivatives of calix[4]resorcinarene and 1,1′-dinaphthylmethane toward metal cations

Abstract

Aminolysis of ester derivatives of 1,1′-dinaphthylmethane and rctt -calix[4]resorcinarene afforded a series of ligands, which differ in molecular platform structure, the number of electron-donating sites, the nature of terminal amide component, the nature and size of the spacers connecting the polycyclic core with amide group. Using liquid extraction method, the effect of ligand structural features on its ability to recognize and bind s -, p -, d -, f -metal cations was investigated, and the stoichiometry of formed complexes was calculated.