초록 |
A fluorescent sensor based on Indene-1,3-dione derivative (sensor 1) for Zn2+ was synthesized through the reaction of salicylaldehyde and 1,3-Indandione . The sensor 1 showed a high selectivity and sensitivity toward Zn²⁺ in DMSO/H2O (v/v = 7:3, pH = 8.04) . It showed a 50 nm Blue-shift of fluorescence emission band upon addition of Zn²⁺. And the fluorescence emission intensity increased upon addition of Zn²⁺. The 1:1 stoichiometry of sensor complex 1+Zn²⁺ was confirmed by Job’s plots based on fluorescence emission titration. |