Synthesis and Characterization of Co2+ Complexes with Hydroxynaphthohydrazone and Investigation of different anions on their behavior

Abstract

In this research, we have reported the results of synthesis of bi and tridentate hydrazine Schiff base ligands derived from 3-hydroxy-2-naphthohydrazide and pyridine-2-carbaldehyde and their complexes with Co²⁺ cation in the presence of different anions including nitrate, acetate, carbonate, thiocyanate, azide and perchlorate. After the separation of compounds in solid state, we used different spectroscopic methods including IR and Uv/Vis for determining characteristics of our compounds. For the prediction of the structure of complexes, besides IR, we determined the conductivity of solutions of complexes. Cyclic Voltammetry and CV, were used for investigating electrochemical behaviors of compounds.