Efficient Reduction of Dioxygen with Ferrocene Catalyzed by Thiocarbohydrazone Tetranuclear Cobalt(III) Coordination Compound

• Published in: Applied organometallic chemistry 2020-10, Vol.34 (10), p.n/a
• Main Authors: Kamyabi, Mohammad Ali, Alirezaei, Fariba, Soleymani‐Bonoti, Fatemeh, Bikas, Rahman, Siczek, Milosz, Lis, Tadeusz
• Format: Article
• Language: English
• Subjects: Chemical reactions; Chemistry; cobalt catalyst; Cobalt compounds; Coordination compounds; Crystal structure; Decomposition reactions; Dichloroethane; Electron transfer; Hydrogen peroxide; liquid–liquid interface; Mulitinuclear coordination compound; oxygen reduction reaction; Oxygen reduction reactions; Structural analysis
• ISSN: 0268-2605; 1099-0739
• DOI: 10.1002/aoc.5833

The synthesis, characterization and crystal structure of a tetranuclear cobalt(III) coordination compound, [Co4(L)4](HSO4)2(SO4)·4.1(CH3OH)·H2O (1), with thiocarbohydrazone based ligand is reported. This compound can efficiently catalyze the reduction of oxygen (O2) by a weak electron donor ferrocene, (Fc), at the polarized water/dichloroethane interface which was investigated by voltammetry and biphasic shake‐flask experiments. Compound 1 contains four cobalt cores which are connected together by sulphur atoms. By having four cobalt cores this coordination compound provides a multi‐electron transfer system for oxygen reduction reactions. The results also suggest that compound 1 catalyzes decomposition of H2O2 at the interface. Synthesis, characterization and crystal structure of a new tetranuclear Co(III) coordination compound. Hydrogen peroxide oxidation at liquid–liquid interface with a tetranucelar cobalt coordination compound. By having four cobalt cores this coordination compound provides a multi‐electron transfer system for oxygen reduction reactions. Molecular oxygen reduction reaction at liquid–liquid interface with a tetranucelar cobalt coordination compound