Thermodynamic and NMR studies of mixed-ligand complex formation of mercury (II) ethylenediaminetetraacetate with dipeptides in solution

被引：1

作者：

Pyreu, Dmitrii ^{[1
]}

Kozlovskii, Eugenii ^{[1
]}

Gruzdev, Matvei ^{[2
]}

Kumeev, Roman ^{[2
]}

机构：

[1] Ivanovo State Univ, Dept Inorgan & Analyt Chem, Ivanovo 153025, Russia

[2] Inst Solut Chem, Ivanovo, Russia

来源：

INORGANICA CHIMICA ACTA | 2013年 / 394卷

关键词：

Mixed-ligand complex; Mercury (II) ethylenediaminetetraacetate; Dipeptide; Calorimetry; NUCLEAR-MAGNETIC-RESONANCE; METAL-PEPTIDE COMPLEXES; AQUEOUS-SOLUTION; COPPER(II) COMPLEXES; EQUILIBRIUM; GLYCYLGLYCINE; OLIGOPEPTIDES; GLUTATHIONE; HISTIDINE; CYSTEINE;

D O I：

10.1016/j.ica.2012.09.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

pH-potentiometry, calorimetry and H-1 and C-13 NMR spectroscopy have been used to study the mixed-ligand complex formation in the systems Hg2+-Edta(4) -L (L = GlyGly, AlaAla) in aqueous solution at 298.15 K and ionic strength of I = 0.5 (KNO3). The thermodynamic parameters of formation of the HgEdtaL(3), and HgEdtaLH(-1)(-4) complexes have been determined. The most probable coordination mode for the complexone and the dipeptide in the mixed-ligand complexes was discussed. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：685 / 690

页数：6

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