Conclusions
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1.
The degree of oxidation of the metal ion in the chelates of Co, Pd, and Cu with α-hydroxylamine oximes is 2+ according to electrochemial and EPR data.
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2.
In the first stage of the electroreduction of the investigated chelates of Co with nioxime and of Cu with α-hydroxylamine oxime the degree of oxidation of the metal ion in the complex changes, while in the case of the other compounds the first electrons are probably accepted by mixed molecular orbitals, to which the ligand fragment makes the largest contribution.
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3.
The electrode reactions of the Co(II) and Pd(II) chelates with α-hydroxylamine oximes are complicated by the catalytic evolution of hydrogen from solutions containing proton donors.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1268–1274, June, 1988.
The chelates have been synthesized at the Leningrad Chemical and Pharmaceutical Instiute under the supervision of A. I. Stetsenko, for which the authors are deeply grateful.
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Troepol'skaya, T.V., Vagina, G.A., Morozov, V.I. et al. Electrochemical reduction of cobalt(II), palladium(II), and copper(II) chelates with α-hydroxylamine oximes at the dropping mercury electrode. Russ Chem Bull 37, 1115–1120 (1988). https://doi.org/10.1007/BF00961912
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DOI: https://doi.org/10.1007/BF00961912