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Abstract <p>The processes of the formation of coordination compounds in a Fe(II)–Fe(III)–L-Ala–H<sub>2</sub>O system at 298.15 K and the ionic strength of a solution of 1.0 mol/L against the background of Na(H)ClO<sub>4</sub> are studied by the classical method of the Clark–Nikolsky oxidation potential. A joint analysis of the obtained experimental curves of the dependence of the electromotive force of the system on the concentration parameters of basic particles makes it possible to determine the formation of complexes with the following compositions: [FeHL(H<sub>2</sub>O)<sub>5</sub>]<sup>3+</sup>, [Fe(HL)<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>]<sup>3+</sup>, [Fe<sub>2</sub>(HL)<sub>2</sub>(OH)<sub>4</sub>(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup>, [Fe(III)Fe(II)(HL)<sub>2</sub>(OH)<sub>4</sub>(H<sub>2</sub>O)<sub>6</sub>]<sup>+</sup>, [FeHL(H<sub>2</sub>O)<sub>5</sub>]<sup>2+</sup>, [Fe(HL)(OH)(H<sub>2</sub>O)<sub>4</sub>]<sup>+</sup>, and [Fe(HL)(OH)<sub>2</sub>(H<sub>2</sub>O)<sub>3</sub>]<sup>0</sup>.</p>

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A Study of the Processes of Complex Formation in a Fe(II)–Fe(III)–L-Ala–H2O System

  • 期刊论文

  • 发表日期：

    2025年6月16日

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  • G. B. Eshova,
  • M. Rakhimova,
  • J. A. Davlatshoeva,
  • F. Miraminzoda,
  • M. T. Ahlidin

摘要

Abstract

The processes of the formation of coordination compounds in a Fe(II)–Fe(III)–L-Ala–H2O system at 298.15 K and the ionic strength of a solution of 1.0 mol/L against the background of Na(H)ClO4 are studied by the classical method of the Clark–Nikolsky oxidation potential. A joint analysis of the obtained experimental curves of the dependence of the electromotive force of the system on the concentration parameters of basic particles makes it possible to determine the formation of complexes with the following compositions: [FeHL(H2O)5]3+, [Fe(HL)2(H2O)4]3+, [Fe2(HL)2(OH)4(H2O)6]2+, [Fe(III)Fe(II)(HL)2(OH)4(H2O)6]+, [FeHL(H2O)5]2+, [Fe(HL)(OH)(H2O)4]+, and [Fe(HL)(OH)2(H2O)3]0.