Synthesis of N2, N6-bis(5-methylthiazol-2-yl)pyridine-2,6-dicarboxamide fluoroscent sensor for detection of Cu2+ and Ni2+ Ions.

This article reports an amide based Chemosensor used for selective detection of divalent Cu and Ni ions via Fluorescence turn off. The selective sensing ability of Chemosensor was investigated in presence of different metal ions Mg, Ag, Fe, K, Cu, Ni, Hg, Pb, Mn, Pd, Cd and Mn as competitive ions. The receptor i. e. Chemosensor formed complexes with metal ions in 1:1 stoichiometric ratio. The detection limit and binding constant calculated as 1.92×10 and 1.4×10 M and 2.16×10 M and 3.09×10 M for Cu and Niions respectively. The complexes were characterized by UV/visible, FT-IR, C NMR and H NMR spectroscopy. Further the structure and Crystallinity were calculated by P-XRD spectral analysis. The crystallinity found to be 65.27 and 67.87% respectively.