Abstract
The formation of mixed-ligand complexes in the M(II)–Ida–L systems (M = Cu, Ni, L = His, Orn, Lys), where Ida is the iminodiacetic acid residue, was studied by pH-metry, calorimetry, and spectrophotometry. The thermodynamic parameters (logK, Δ r G 0, Δ r H, Δ r S) of formation of the complexes were determined at 298.15 K and the ionic strength I = 0.5 (KNO3). The most probable mode of coordination of the chelating agent and the amino acid in the mixed-ligand complexes was elucidated.
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Original Russian Text © D.F. Pyreu, M.A. Bazanova, S.N. Gridchin, E.V. Kozlovskii, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 7, pp. 950–958.
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Pyreu, D.F., Bazanova, M.A., Gridchin, S.N. et al. Thermochemical study of the complex formation of copper(II) and nickel(II) iminodiacetates with amino acids in aqueous solutions. Russ. J. Inorg. Chem. 61, 909–917 (2016). https://doi.org/10.1134/S0036023616070159
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DOI: https://doi.org/10.1134/S0036023616070159