Redox characteristics of manganese and cobalt complexes obtained from pyridine N-oxide

S. Hotchandani, U. Ozdemir, S. I. Allakhverdiev, N. Karacan, V. V. Klimov, P. V. Kamat, R. Carpentier

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    Manganese and cobalt complexes, using pyridine N-oxide as ligand, have been synthesized, and their cyclic and square-wave voltammetric measurements have been carried out. The results reveal that the complexes exhibit different voltammetric pattern, which suggests that the redox processes are most probably metal-centered. In both complexes, extra redox activity is observed once the potential exceeds certain value of the voltage. The observation of an oxidation wave in manganese complex at +0.75 V vs. Ag/AgCl or +0.95 V vs. NHE strongly suggests that this complex can bring about oxidation of water and can, thus, serve as a synthetic analogue of water oxidizing complex (WOC) of PS II. Copyright (C) 2000 Elsevier Science S.A.

    Original languageEnglish
    Pages (from-to)175-180
    Number of pages6
    JournalBioelectrochemistry and Bioenergetics
    Issue number2
    Publication statusPublished - Jun 2000


    • Cobalt complex
    • Cyclic voltammetry
    • Manganese complex
    • Photosystem II (PS II)
    • Redox characteristics
    • Water oxidizing complex (WOC)

    ASJC Scopus subject areas

    • Biophysics
    • Physical and Theoretical Chemistry
    • Electrochemistry


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