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Gulrukhsor B. Eshova, Mubashirkhon Rakhimova, Jahongul A. Davlatshoeva, Miraminzoda Farida, Mustafo
T. Ahlidin
The
processes of complex formation in the system Fe(II)–Fe(III)–L-Ala–H2O
Abstract
The processes of formation of coordination compounds in the Fe(II)–Fe(III)–L-Ala–H2O system at a temperature of 298,15 K,
the ionic strength of a solution of 1,0 mol/l on a perchlorate background were
studied by the Clark – Nikolsky oxidative potential method. Installed the
formation of complexes of the following composition:
[FeHL(H2O)5]3+;[Fe(HL)2(H2O)4]3+;Fe2(HL)2(OH)4(H2O)6]2+;
[FeIIIFeII(HL)2(OH)4(H2O)6]+;[FeHL(H2O)5]2+;[Fe(HL)(OH)(H2O)4]+;
[Fe(HL)(OH)2(H2O)3]0.
By the method of iteration of the oxidative function, the constants of the
formation of all complexes are calculated, and the areas of their dominance and
the maximum degrees of accumulation are determined.
Key words: EMF, complexes, iron(II), iron(III), L-alanine, concentration
parameters, dominance, areas of existence
Copyright (C) Chemistry Dept., Moscow State University, 2002
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