Application of Capillary Electrophoresis to the Study of Equilibria on an Example of Gold(III) Complexes

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Application of Capillary Electrophoresis to the Study of Equilibria on an Example of Gold(III) Complexes. / Mironov, I. V.; Kharlamova, V. Yu ; Kokovkin, V. V.

в: Journal of Analytical Chemistry, Том 73, № 6, 01.06.2018, стр. 586-592.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{d066527c38be47058fb0b47c72db6e07,

title = "Application of Capillary Electrophoresis to the Study of Equilibria on an Example of Gold(III) Complexes",

abstract = "Three systems of gold(III) complexes in an aqueous solution (I = 0.05 M, 25°C) with slow equilibration were studied by capillary electrophoresis. It was shown on an example of mixed chloride–hydroxide complexes Au(OH)iCl4-i - that, despite close sizes and identical charges of the forms, the mixed forms can be separated if they are kinetically inert. For the equilibria AuCl4 −+ am = AuamCl2 + + 2Cl– and AuamCl2 + + am = + Auam2 3+ + 2Cl–, where am is ethylenediamine (en) and 1,3-diaminopropane (tn), the logarithmic constants were logK2 = 10.4 for en, and logK1 = 16.1 and logK2 = 12.0 for tn, which satisfactorily agrees with the spectrophotometric data. There was a considerable effect of side processes, insignificant under normal conditions.",

keywords = "1,3-diaminopropane, capillary electrophoresis, gold(III) complexes, KINETICS, METAL-COMPLEXES",

author = "Mironov, {I. V.} and Kharlamova, {V. Yu} and Kokovkin, {V. V.}",

year = "2018",

month = jun,

day = "1",

doi = "10.1134/S1061934818060084",

language = "English",

volume = "73",

pages = "586--592",

journal = "Journal of Analytical Chemistry",

issn = "1061-9348",

publisher = "PLEIADES PUBLISHING INC",

number = "6",

}

RIS

TY - JOUR

T1 - Application of Capillary Electrophoresis to the Study of Equilibria on an Example of Gold(III) Complexes

AU - Mironov, I. V.

AU - Kharlamova, V. Yu

AU - Kokovkin, V. V.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - Three systems of gold(III) complexes in an aqueous solution (I = 0.05 M, 25°C) with slow equilibration were studied by capillary electrophoresis. It was shown on an example of mixed chloride–hydroxide complexes Au(OH)iCl4-i - that, despite close sizes and identical charges of the forms, the mixed forms can be separated if they are kinetically inert. For the equilibria AuCl4 −+ am = AuamCl2 + + 2Cl– and AuamCl2 + + am = + Auam2 3+ + 2Cl–, where am is ethylenediamine (en) and 1,3-diaminopropane (tn), the logarithmic constants were logK2 = 10.4 for en, and logK1 = 16.1 and logK2 = 12.0 for tn, which satisfactorily agrees with the spectrophotometric data. There was a considerable effect of side processes, insignificant under normal conditions.

AB - Three systems of gold(III) complexes in an aqueous solution (I = 0.05 M, 25°C) with slow equilibration were studied by capillary electrophoresis. It was shown on an example of mixed chloride–hydroxide complexes Au(OH)iCl4-i - that, despite close sizes and identical charges of the forms, the mixed forms can be separated if they are kinetically inert. For the equilibria AuCl4 −+ am = AuamCl2 + + 2Cl– and AuamCl2 + + am = + Auam2 3+ + 2Cl–, where am is ethylenediamine (en) and 1,3-diaminopropane (tn), the logarithmic constants were logK2 = 10.4 for en, and logK1 = 16.1 and logK2 = 12.0 for tn, which satisfactorily agrees with the spectrophotometric data. There was a considerable effect of side processes, insignificant under normal conditions.

KW - 1,3-diaminopropane

KW - capillary electrophoresis

KW - gold(III) complexes

KW - KINETICS

KW - METAL-COMPLEXES

UR - http://www.scopus.com/inward/record.url?scp=85048145168&partnerID=8YFLogxK

U2 - 10.1134/S1061934818060084

DO - 10.1134/S1061934818060084

M3 - Article

AN - SCOPUS:85048145168

VL - 73

SP - 586

EP - 592

JO - Journal of Analytical Chemistry

JF - Journal of Analytical Chemistry

SN - 1061-9348

IS - 6

ER -

ID: 13794403