Synthesis, electrochemistry, and electrocatalytic activity of thiazole-substituted phthalocyanine complexes

Faruk Demir, H. Yasemin Yenilmez, Atıf Koca, Zehra Altuntaş Bayır*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We report the synthesis of non-peripheral metallophthalocyanines which carry four 4-(4-methoxyphenyl)-2-thiazole-2-thio units. 1H-NMR, FT-IR, UV–Vis, and MS data were acquired to characterize the synthesized compounds. Voltammetric and in situ spectroelectrochemical measurements shed light on the redox properties of the metallophthalocyanines (MPcs) in order to show the influence of the metal cations and thiazole-bearing substituents. In solution, the redox processes had an influence to the electrochromic responses, which were examined with in situ spectrocolorimetry. Phthalocyanines having cobalt (II), manganese (III), iron (III), and zinc (II) at the center yielded characteristic redox couples which are metal- and/or Pc-based and which are harmonious with the common redox properties of these types of compounds. In situ spectroelectrochemistry provided the information that MPc species underwent distinct color changes during electron transfer reactions. Electropolymerization of all complexes was performed on glassy carbon electrode, and the electropolymerized film of FePc was evaluated as an active electrocatalyst, in the alkaline medium, for oxygen evolution reaction (OER).

Original languageEnglish
Pages (from-to)761-772
Number of pages12
JournalJournal of Solid State Electrochemistry
Issue number3
Publication statusPublished - Mar 2022

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.


Atıf Koca thanks Turkish Academy of Sciences (TUBA) for support.

FundersFunder number
Türkiye Bilimler Akademisi


    • Electrochemistry
    • Oxygen evolution reaction (OER)
    • Phthalocyanine
    • Spectroelectrochemistry
    • Thiazole


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