Azo dye featuring triazole appended organosilicon multifunctionalized sensor: Paradigm for detection of Cu+2 and Fe+2 ions

This work embodies the derivatization of functional organic fragments with triethoxysilyl motif to afford organotriazole silanes (5a-5e) using copper-catalyzed alkyne azide cycloaddition reaction under strictly anhydrous conditions. Furthermore, when compound Se was employed for the sensorial aptitude towards wide spectrum of transition metal ions, UV-Vis absorption analysis substantiates the selective binding with Fe2+ and Cu2+ ions. This sensor unveils unassailable binding ability, high sensitive and selectivity in semi aqueous media. LOD values for recognition of Fe2+ and Cu2+ ions were estimated to be 0.11 mu M and 0.12 mu M respectively and on the basis of the Job's plot, the feasible binding approach of the receptor with these ions have also been proposed.