Abstract
The electrochemical behavior of plumbagin at the glassy carbon electrode modified by a thin film of tetraoctylphosphonium bromide has been investigated using cyclic and square-wave voltammetry. It was found that the redox transformation of plumbagin gives rise to two dependent systems, I/I’ and, II/II’, which are monoelectronic and resulting likely, respectively, in the formation of a monoanionic radical end of a dianion radical. The two systems were quasi-reversible. The formation of ion pairs was the main effect governing the observed redox processes and the obtained system was influenced by the scan rate as well as the scan frequency.
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Nassi, A., Sop, S.D.K., Leuna, JB.M. et al. Electrochemical reactivity of thin film of plumbagin at ionic liquid | water interface. Monatsh Chem 153, 569–576 (2022). https://doi.org/10.1007/s00706-022-02940-w
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DOI: https://doi.org/10.1007/s00706-022-02940-w