Thermodynamics of Complexation Reactions of Pr 3+  and Sm 3+  Ions with Glycylglycine in an Aqueous Solution

A. I. Lytkin; V. V. Chernikov; O. N. Krutova; D. K. Smirnova; A. A. Golubev

doi:10.1134/S1070363219020130

Thermodynamics of Complexation Reactions of Pr³⁺ and Sm³⁺ Ions with Glycylglycine in an Aqueous Solution

Authors: Lytkin A.I.¹, Chernikov V.V.¹, Krutova O.N.¹, Smirnova D.K.¹, Golubev A.A.¹
Affiliations:
1. Ivanovo State University of Chemistry and Technology
Issue: Vol 89, No 2 (2019)
Pages: 252-254
Section: Article
URL: https://journals.rcsi.science/1070-3632/article/view/222748
DOI: https://doi.org/10.1134/S1070363219020130
ID: 222748

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Abstract

Enthalpies of complexation of diglycine (HL^±) with Pr³⁺ and Sm³⁺ ions at 303.15 K and I = 0.5 (KNO₃) have been determined by means of calorimetry. The thermodynamic parameters of the formation of diglycine complexes with Pr³⁺ and Sm³⁺ ions have been calculated at different molar ratios between metal and the ligand.