The synthesis and electrochemical behaviour of carbazole-substituted phthalocyanines
| Autor: | H. Yasemin Yenilmez, Zehra Altuntaş Bayır, Esma Sezer, Belkıs Ustamehmetoğlu |
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| Rok vydání: | 2017 |
| Předmět: |
Carbazole
Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Redox 0104 chemical sciences Catalysis Phthalonitrile Potassium carbonate chemistry.chemical_compound chemistry General Materials Science Electrical and Electronic Engineering Cyclic voltammetry 0210 nano-technology Cobalt Nuclear chemistry |
| Zdroj: | Journal of Solid State Electrochemistry. 22:505-517 |
| ISSN: | 1433-0768 1432-8488 |
| Popis: | The syntheses of new cobalt and zinc phthalocyanine complexes containing carbazole (Cz) substituents at the peripheral positions are reported (CzCoPc and CzZnPc). The reaction of Cz with 4-iodophthalonitrile in the presence of a catalytic amount of copper(I) oxide and potassium carbonate led to the formation of 4-(9H-carbazol-9-yl) phthalonitrile. Furthermore, by heating the dinitrile and anhydrous metal salts (CoCl2, Zn(CH3COO)2) at 160 °C in n-hexanol in the presence of DBU, the phthalocyanines were obtained. They were characterised by 1H NMR, FT-IR, UV-Vis and MS spectroscopic data. Aggregation behaviours of Pcs were investigated in THF. Electrochemical redox behaviour of CzCoPc was investigated by cyclic voltammetry depending on the potential range, and the oxidation and reduction products were followed by UV-Visible absorption measurements. Polymerisation of CzCoPc was carried out by potentiodynamic methods on glassy carbon electrode, and the catalytic activity of resulting polymer (P[CzCoPc]) was tested comparatively with polycarbazole (PCz)-coated electrode for dopamine and better response was obtained for P[CzCoPc] modified electrode. |
| Databáze: | OpenAIRE |
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