Nk. Metrov et al., MAGNETIC-FIELD EFFECTS ON EXCIPLEX FLUORESCENCE OF THE PYRENE AZACROWN ETHER SYSTEM IN THE PRESENCE OF ALKALI AND ALKALINE-EARTH SALTS, Mendeleev communications, (1), 1995, pp. 4-5
Paramagnetic species are produced in solutions of the pyrene-azacrown
ether exciplex system during light excitation in the presence of diama
gnetic metallic ions Li+ and Ca2+.