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Interaction of PdCl 2-4 with L-cystine in hydrochloric acid solutions

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Abstract

The effect of acidity and equilibrium chloride ion concentration on the interaction of PdCl4 2- with cystine (H2CySS) in hydrochloric acid solutions was studied. Pd(H4CySS)Cl3+ complex was found to form at [Cl–] = 1.0, 0.5, or 0.25 mol/Linthe [H+] range from 0.10 to 1.00 mol/L; the relevant equilibrium constant was determined. Monodentate coordination of cystine to palladium(II) through the sulfur atom was proposed on the basis of analysis of conditional stability constants as functions of [Cl–] and [H+].

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Authors and Affiliations

  1. Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 600074, Russia

    N. N. Golovnev, A. A. Leshok & G. V. Novikova

Authors
  1. N. N. Golovnev
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  2. A. A. Leshok
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  3. G. V. Novikova
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Original Russian Text © N.N. Golovnev, A.A. Leshok, G.V. Novikova, 2010, published in Zhurnal Neorganicheskoi Khimii, 2010, Vol. 55, No. 2, pp. 299–301.

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Golovnev, N.N., Leshok, A.A. & Novikova, G.V. Interaction of PdCl 2-4 with L-cystine in hydrochloric acid solutions. Russ. J. Inorg. Chem. 55, 291–293 (2010). https://doi.org/10.1134/S0036023610020245

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  • DOI: https://doi.org/10.1134/S0036023610020245

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