Synthesis of antipyrine based organic material for Zn2+ ion sensing and implication in logic gate analysis

The antipyrine linked E allylic ester (BH-AP) ONO tridentate was synthesized, using acetate of Baylis Hillman Adduct (BH) and antipyrine (AP) through S(N)2' allylic substitution reaction. The newly synthesized ligand was characterized using IR and NMR spectroscopy. The ligand BH-AP was analyzed using UV-Visible and fluorescence techniques for its selective metal ion recognition properties. The emission spectroscopy exhibited the sensitivity and selectivity of the sensor for Zn2+ ion by significantly quenching the fluorescence intensity upon excitation at 268 nm. The 1:1 ratio binding stoichiometry and the binding constant value of 4.5796 x 10(-6) M-1 were obtained for the ligand BH-AP with Zn(2+)ion. The appropriate combination of materials-AP, Zn(2+)and pH found to be suitable for NOR logic gate application. (C) 2020 Elsevier Ltd. All rights reserved.