Electroactive properties of a new azulene thioxo-imidazolidin-4-one ligand for modified electrodes

Abstract

The electrochemical characterization of a new synthesized azulene compound (Z)-5-((5-iso­propyl-3,8-dimethylazulen-1-yl)methylene)-2-thioxoimidazolidin-4-one (L) using cyclic vol­tammetry, differential pulse voltammetry and rotating disk electrode is presented. Chemi­cally modified electrodes were obtained by successive scanning or by controlled potential electrolysis using different electrode potentials or charges. The new modified electrodes were tested in solutions containing different concentrations of the following heavy metals: cadmium, lead, mercury and copper. A good analytical response was obtained for Pb2+.

Keywords

• (Z)-5-((5-isopropyl-3
• 8-dimethylazulen-1-yl)methylene)-2-thioxo-imidazolidin-4-one
• electrochemical characterization
• chemically modified electrodes
• heavy metals recognition