Functionalized azobenzocrown ethers as sensor materials-The synthesis and ion binding properties

摘要

New 13- and 16-membered azobenzocrown ethers with aromatic amino, amide, ether-ester or ether-amide residue in para position to an azo moiety were obtained. Acid-base properties and ion binding ability of the colored compounds were studied by spectroscopic methods: UV-vis, fluorimetry and 1H NMR spectroscopy. Selected azobenzocrowns were tested as ionophores in ion-selective membrane electrodes (ISEs) - classic and miniature all solid state. The X-ray structure of the sodium complex of ether-ester derivative of 16-membered azobenzocrown was presented.