Abstract
In this study, the coumarin-derived schiff bases (HL1 and HL2) have been designed and synthesized. Upon the addition of Zn2+, both of them show significant fluorescence enhancement owing to inhibits PET and ESIPT process respectively. However, the receptor HL2 response toward Cd2+, Mg2+, Ba2+, Ca2+ besides Zn2+ and exhibits fluorescence enhancement but not enough to detection of the concentration levels of Zn2+.
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