Crown-containing butadienyl dyes 1. synthesis, structure, fluorescence, and complex formation of chromogenic aza-15-crown-5 ethers

Article abstract of DOI:10.1007/BF02496174

Crown-containing butadienyl dyes containing various heterocyclic moieties and azacrown ether fragments were synthesized for the first time. The spatial structures and the absorption and fluorescence spectra of crown-containing butadienyl dyes and their complexes with metal cations were examined. The effects of the nature of the heterocyclic and crown ether fragments on fluorescence and generation of dyes and their complexes with metal cations were revealed based on the spectral data.