Abstract
The formation of mixed-ligand complexes in the M(II)–Nta, Ida–L (M = Cu(II), Ni, Zn, Co(II), L = Ser, Thr, Asp, Arg, Asn) systems, where Ida and Nta are the residues of iminodiacetic and nitrilotriacetic acids, respectively, is studied using pH measurements, calorimetry and spectrophotometry. The thermodynamic parameters (logK, ΔrG0, ΔrH, ΔrS) of their formation at 298.15 K and ionic strength I = 0.5 (KNO3) are determined. The most likely scenario of amino acid residue coordination in the composition of mixed complexes is discussed.
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Original Russian Text © D.F. Pyreu, S.N. Gridchin, 2018, published in Zhurnal Fizicheskoi Khimii, 2018, Vol. 92, No. 5, pp. 741–750.
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Pyreu, D.F., Gridchin, S.N. Formation of Mixed-Ligand Complexes of Metals(II) with Monoamine Complexones and Amino Acids in Solution. Russ. J. Phys. Chem. 92, 909–917 (2018). https://doi.org/10.1134/S0036024418050254
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DOI: https://doi.org/10.1134/S0036024418050254