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Thermodynamic Parameters of the Mixed-Ligand Complexation of Cobalt(II) with Triglycine and L-Histidine in an Aqueous Solution

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Abstract

The Co2+–triglycine–L-histidine system is studied in an aqueous solution at Т = 298.15 K (KNO3) via potentiometry and calorimetry. The formation of mixed-ligand CoL2Y− complex is established, and the standard thermodynamic characteristics (ΔrH°, ΔrG°, ΔrS°) of the complexation reaction are determined. A structure is proposed for this complex.

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Funding

This work was performed as part of a State Task for the Research Institute for Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology, project no. FZZW-2020-0009.

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Authors and Affiliations

  1. Ivanovo State University of Chemical Technology, 153000, Ivanovo, Russia

    G. G. Gorboletova, S. A. Bychkova, E. A. Gorbashova & K. O. Frolova

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  1. G. G. Gorboletova
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  2. S. A. Bychkova
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  3. E. A. Gorbashova
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  4. K. O. Frolova
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Corresponding author

Correspondence to G. G. Gorboletova.

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Translated by E. Glushachenkova

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Gorboletova, G.G., Bychkova, S.A., Gorbashova, E.A. et al. Thermodynamic Parameters of the Mixed-Ligand Complexation of Cobalt(II) with Triglycine and L-Histidine in an Aqueous Solution. Russ. J. Phys. Chem. 94, 1816–1821 (2020). https://doi.org/10.1134/S0036024420090083

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  • DOI: https://doi.org/10.1134/S0036024420090083

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