Akademik Veri Yönetim Sistemi
Inorganica Chimica Acta, cilt.598, 2026 (SCI-Expanded, Scopus)
The rich redox activities of phthalocyanines pave the way for the use of these structures as functional materials, particularly in applications requiring electron transfer. Therefore, improving the redox properties of these structures through the metal centers and substituents present in the structure is of great importance. For this purpose, in this study, we synthesized peripheral manganese (III) (OX-MnIIIClPc), cobalt (II) (OX-CoIIPc), and copper (II) (OX-CuIIPc) phthalocyanine compounds containing 1,3,4-oxadiazole and characterized with the FT-IR, MALDI-TOF, and UV–Vis spectroscopy to determine their structures. Then the electrochemical characterizations of MPc compounds (OX-MnIIICl/CoII/CuIIPcs) were carried out in solution using various voltammetric and spectroelectrochemical techniques. These characterization results supported preparations of the complexes successfully with the proposed structures. The cyclic voltammetry (CV), square wave voltammetry (SWV), and controlled potential coulometry (CPC) measurements indicated the common predicted reduction and oxidation reactions of the Pc ring and metal centers, which also supported the proposed structures. Voltammetric responses showed enhancements of the redox richness of the Pc ring with the extra redox reactions of Co2+ and Mn3+ cations of the OX-CoIIPc and OX-MnIIIClPc compounds. For the OX-CuIIPc compound, only Pc-based redox processes were observed due to the redox inactivity of the Cu2+ cation. In-situ spectroelectrochemical (SEC) analyses supported the voltammetric redox behaviors. Additionally, significant spectral and color changes in SEC analyses indicated that these materials can be used in opto-electrochemical applications.