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Synthesis, Characterization, and Electrochemical Study of Complexes with 4,4′-Bis(Salicylideneimino) Diphenylether and Cobalt(II), Copper(II), Zinc(II), and Cadmium(II)

Abstract : The 4,4′-bis(salicyleneimino) diphenyl ether is a N2O3 Schiff base but it acts as a tetradentate ligand. Its complexes with cobalt (II), copper(II), zinc(II), and cadmium (II) were characterised using spectroscopic determinations, d.s.c. and cyclic voltammetry. In these compounds, the coordination occurs through the non-ionised phenolic hydroxyl of the ligand and the nitrogen atom of the azomethine moiety. These new complexes should be formulated [CuCl2(H2L)] · H2O, [(CoCl2)2(H2L)(H2O)4] · 2H2O, [Zn2Cl2(H2L)] and [Cd(H2L)]Cl2 respectively. The copper(II) and cadmium(II) complexes are mononuclear while the cobalt(II) and zinc(II) appeared to be binuclear species. The anodic oxidations of cobalt (II), zinc(II), and cadmium(II) compounds show only one peak attributed to the oxidation of the phenolic moiety of the ligand. In addition, the copper complex [CuCl2(H2L)] · H2O exhibits two peaks at +680 mV (ECS) and +965 mV (ECS) corresponding to the complexed couples CuII/CuIII and CuI/CuII.
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https://hal.univ-angers.fr/hal-03227305
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Soumis le : mercredi 19 mai 2021 - 19:46:03
Dernière modification le : jeudi 20 mai 2021 - 09:39:39
Archivage à long terme le : : vendredi 20 août 2021 - 18:03:31

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S. Issaadi, D. Haffar, T. Douadi, S. Chafaa, D. Séraphin, et al.. Synthesis, Characterization, and Electrochemical Study of Complexes with 4,4′-Bis(Salicylideneimino) Diphenylether and Cobalt(II), Copper(II), Zinc(II), and Cadmium(II). Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2005, 35 (10), pp.875-882. ⟨10.1080/15533170500358044⟩. ⟨hal-03227305⟩

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