SciELO - Scientific Electronic Library Online

vol.37 issue4Detection of Catechol using a Biosensor Based on Biosynthesized Silver nanoparticles and Polyphenol Oxidase Enzymes author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Portugaliae Electrochimica Acta

Print version ISSN 0872-1904


MEENA, Lakshmi; CHOUDHARY, Preeti; VARSHNEY, A.K.  and  VARSHNEY, S.. Electrochemical Behaviour of 4-Tertbutylcyclohexanone Semicarbazone and its Co(II) Complex. Port. Electrochim. Acta [online]. 2019, vol.37, n.4, pp.271-283. ISSN 0872-1904.

The electrochemical behaviour of 4-tertbutylcyclohexanone semicarbazone (TBCHSC) and its Co(II) complex was investigated by a glassy carbon electrode, cyclic voltammetry technique. Semicarbazone synthesized from the condensation of 4-tertbutylcyclohexanone and semicarbazide hydrochloride (1:1 molar ratio) was further treated with cobalt(II) acetate (2:1 molar ratio), to form the Co(II)-semicarbazone complex. The semicarbazone was studied in buffer solutions (Britton-Robinson universal buffer and phosphate buffer), with a pH in the range of 3 to 11. The reduction process was found to be irreversible and diffusion controlled, for both semicarbazone and its Co(II) complex. The effects of change on the sweep rate, concentration, pH and solvent were evaluated. The semicarbazone reduction mechanism was suggested on the basis of the obtained results. Kinetic parameters, such as charge transfer coefficient (an), diffusion coefficient (D01/2), and rate constant (k°f,h), were calculated from cyclic voltammetric measurements. Semicarbazone and its Co(II) complex were tested against bacterial and fungal species. The metal complex had higher activity than the free ligand.

Keywords : 4-tertbutylcyclohexanone semicarbazone; Co(II) complex; cyclic voltammetry; kinetic parameters; antimicrobial activities.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License