Water-induced fluorescence quenching of mono- and dicyanoanilines
作者:Juro Oshima、Toshitada Yoshihara、Seiji Tobita
DOI:10.1016/j.cplett.2006.03.073
日期:2006.6
Photophysical properties of monocyano- (2-, 3-, and 4-cyano) and dicyano- (3,4-, 3,5-, 2,3-, 2,4-, 2,5-, and 2,6-dicyano) anilines are investigated by fluorescence measurements. All the monocyanoanilines are virtually nonfluorescent in water (quantum yield < 0.01); however, in nonaqueoussolvents (cyclohexane, acetonitrile and ethanol), the fluorescence quantum yield is enhanced substantially. In contrast