Photochemical Modulation ofEuropium Ion Fluorescence Usinga Tetraazamacrocyclic DerivativeBearing a Spirobenzopyran andThree Carboxymethyl Moieties

摘要

The fluorescence properties of a Eu~(3+)complex with atetraazamacrocyclic derivative bearing a spirobenzopyranand three carboxymethyl moieties were investigated. Theenhanced fluorescence of Eu~(3+), which proved that thespirobenzopyran moiety worked as an antenna for thesensitization, was controlled photochemically.