Abstract:
Synthesis and photophysical studies of a simple and efficient dansyl-styrylquinoline conjugate (DansSQ) which shows excellent selectivity towards Fe(2+) over other transition metal ions including Fe(3+) is described. The fluorescent emission of DansSQ at 450 nm was enhanced upon addition of Fe(2+) in the presence of common interfering metal ions in background. The studies suggest that DansSQ could be used as fluorescent sensor for Fe(2+).