An unprecedented rhodamine-based fluorescent and colorimetric chemosensor for Fe~(3+) in aqueous media

摘要

A novel rhodamine-based chemosensor has been designed and synthesized. The chemosensor, a colorless and nonfluorescent compound, exhibited remarkable fluorescent and colorimetric response toward Fe~(3+) in aqueous media with high selectivity and sensitivity, and no significant response toward other metal ions such as Hg~(2+), Ag~+, Pb~(2+), Sr~(2+) Ba~(2+), Cd~(2+), Ni~(2+), Co~(2+), Fe~(2+), Mn~(2+), Cu~(2+), Zn~(2+), Ce~(3+), Mg~(2+), K~+, and Na~+.