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Gold(I) cysteinate complexes in aqueous solutions. / Mironov, I. V.; Kharlamova, V. Yu.

In: Russian Journal of Inorganic Chemistry, Vol. 62, No. 7, 01.07.2017, p. 1014-1020.

Research output: Contribution to journal › Article › peer-review

Harvard

Mironov, IV & Kharlamova, VY 2017, 'Gold(I) cysteinate complexes in aqueous solutions', Russian Journal of Inorganic Chemistry, vol. 62, no. 7, pp. 1014-1020. https://doi.org/10.1134/S0036023617070154

APA

Mironov, I. V., & Kharlamova, V. Y. (2017). Gold(I) cysteinate complexes in aqueous solutions. Russian Journal of Inorganic Chemistry, 62(7), 1014-1020. https://doi.org/10.1134/S0036023617070154

Vancouver

Mironov IV, Kharlamova VY. Gold(I) cysteinate complexes in aqueous solutions. Russian Journal of Inorganic Chemistry. 2017 Jul 1;62(7):1014-1020. doi: 10.1134/S0036023617070154

Author

Mironov, I. V. ; Kharlamova, V. Yu. / Gold(I) cysteinate complexes in aqueous solutions. In: Russian Journal of Inorganic Chemistry. 2017 ; Vol. 62, No. 7. pp. 1014-1020.

BibTeX

@article{f6f97a7ce4124b668c73c542f2ea420f,
title = "Gold(I) cysteinate complexes in aqueous solutions",
abstract = "Equilibria between gold(I) cysteinate complexes in aqueous solutions are studied by pH-metry, solubility measurements, and potentiometric measurements using a gold electrode at 25°C and I = 0.2 M (NaCl). The stepwise protonation constants logKiH of cysteinate Hi – 1Cysi – 3 + H+ = HiCysi – 2 are as follows: 10.10 (i = 1), 8.12 (i = 2), and 1.90 (i = 3). Protonation of cysteinate complexes is studied: Au(Cys)2 3− + H+ = Au(HCys)(Cys)2–, logK1H Au = 9.62 and Au(HCys)(Cys)2– + H+ = Au(HCys)2 −, logK2HAu = 9.01. The constant KS of the heterogeneous equilibrium Au(HCys)s + HCys– = Au(HCys)2 − is 3.3. The standard potential of the Au(Cys)2 3− complex is E1/0 0 = –0.172 ± 0.011 V. The stability of the Au(HCys)2 − complex is close to that of Au(HS)2 −. The constant of substitution Au(HCys)2 − + SO3 2− = Au(HCys)SO3 2− + HCys– is determined to be logK11H = –1.3.",
keywords = "CHEMISTRY",
author = "Mironov, {I. V.} and Kharlamova, {V. Yu}",
year = "2017",
month = jul,
day = "1",
doi = "10.1134/S0036023617070154",
language = "English",
volume = "62",
pages = "1014--1020",
journal = "Russian Journal of Inorganic Chemistry",
issn = "0036-0236",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "7",

}

RIS

TY - JOUR

T1 - Gold(I) cysteinate complexes in aqueous solutions

AU - Mironov, I. V.

AU - Kharlamova, V. Yu

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Equilibria between gold(I) cysteinate complexes in aqueous solutions are studied by pH-metry, solubility measurements, and potentiometric measurements using a gold electrode at 25°C and I = 0.2 M (NaCl). The stepwise protonation constants logKiH of cysteinate Hi – 1Cysi – 3 + H+ = HiCysi – 2 are as follows: 10.10 (i = 1), 8.12 (i = 2), and 1.90 (i = 3). Protonation of cysteinate complexes is studied: Au(Cys)2 3− + H+ = Au(HCys)(Cys)2–, logK1H Au = 9.62 and Au(HCys)(Cys)2– + H+ = Au(HCys)2 −, logK2HAu = 9.01. The constant KS of the heterogeneous equilibrium Au(HCys)s + HCys– = Au(HCys)2 − is 3.3. The standard potential of the Au(Cys)2 3− complex is E1/0 0 = –0.172 ± 0.011 V. The stability of the Au(HCys)2 − complex is close to that of Au(HS)2 −. The constant of substitution Au(HCys)2 − + SO3 2− = Au(HCys)SO3 2− + HCys– is determined to be logK11H = –1.3.

AB - Equilibria between gold(I) cysteinate complexes in aqueous solutions are studied by pH-metry, solubility measurements, and potentiometric measurements using a gold electrode at 25°C and I = 0.2 M (NaCl). The stepwise protonation constants logKiH of cysteinate Hi – 1Cysi – 3 + H+ = HiCysi – 2 are as follows: 10.10 (i = 1), 8.12 (i = 2), and 1.90 (i = 3). Protonation of cysteinate complexes is studied: Au(Cys)2 3− + H+ = Au(HCys)(Cys)2–, logK1H Au = 9.62 and Au(HCys)(Cys)2– + H+ = Au(HCys)2 −, logK2HAu = 9.01. The constant KS of the heterogeneous equilibrium Au(HCys)s + HCys– = Au(HCys)2 − is 3.3. The standard potential of the Au(Cys)2 3− complex is E1/0 0 = –0.172 ± 0.011 V. The stability of the Au(HCys)2 − complex is close to that of Au(HS)2 −. The constant of substitution Au(HCys)2 − + SO3 2− = Au(HCys)SO3 2− + HCys– is determined to be logK11H = –1.3.

KW - CHEMISTRY

UR - http://www.scopus.com/inward/record.url?scp=85026836202&partnerID=8YFLogxK

U2 - 10.1134/S0036023617070154

DO - 10.1134/S0036023617070154

M3 - Article

AN - SCOPUS:85026836202

VL - 62

SP - 1014

EP - 1020

JO - Russian Journal of Inorganic Chemistry

JF - Russian Journal of Inorganic Chemistry

SN - 0036-0236

IS - 7

ER -

ID: 10068970