MIXED-LIGAND COMPLEX FORMATION IN THE COPPER(II)-PHENANTHROLINE-ETHYLENEDIAMINE-4,4'-BIPYRIDYL SYSTEM IN WATER-DIOXANE SOLUTIONS

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MIXED-LIGAND COMPLEX FORMATION IN THE COPPER(II)-PHENANTHROLINE-ETHYLENEDIAMINE-4,4'-BIPYRIDYL SYSTEM IN WATER-DIOXANE SOLUTIONS. / Kudrev, A.G.

In: Russian Journal of Inorganic Chemistry, No. 2, 1998, p. 216-221.

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

BibTeX

@article{a035a255f40a4d179027a494b7b1fe59,

title = "MIXED-LIGAND COMPLEX FORMATION IN THE COPPER(II)-PHENANTHROLINE-ETHYLENEDIAMINE-4,4'-BIPYRIDYL SYSTEM IN WATER-DIOXANE SOLUTIONS",

abstract = "Electronic absorption spectroscopy was used to study the complex formation in water-dioxane solutions containing Cu(II), 4,4'-bipyridyl (Bp), 1,10-phenanthroline (Phen), and ethylenediamine (En). The nonlinear least-squares method and factor analysis showed that the most satisfactory description of the experimental dependences of absorbances on the concentrations of solution components is provided by a mathematical model that includes, as parameters, stability constants (?) of homoligand and mixed-ligand ternary complexes and those of the quaternary [Cu2(Phen)(En)(Bp)]solv4+ complex. Based on the calculated electronic absorption spectra, the spectrochemical series for the compounds studied was constructed. The formation of the quaternary complex from mixed-ligand ternary complexes was found to result in a hypsochromic shift of the d-d absorption maximum.",

author = "A.G. Kudrev",

year = "1998",

language = "English",

pages = "216--221",

journal = "Russian Journal of Inorganic Chemistry",

issn = "0036-0236",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - MIXED-LIGAND COMPLEX FORMATION IN THE COPPER(II)-PHENANTHROLINE-ETHYLENEDIAMINE-4,4'-BIPYRIDYL SYSTEM IN WATER-DIOXANE SOLUTIONS

AU - Kudrev, A.G.

PY - 1998

Y1 - 1998

N2 - Electronic absorption spectroscopy was used to study the complex formation in water-dioxane solutions containing Cu(II), 4,4'-bipyridyl (Bp), 1,10-phenanthroline (Phen), and ethylenediamine (En). The nonlinear least-squares method and factor analysis showed that the most satisfactory description of the experimental dependences of absorbances on the concentrations of solution components is provided by a mathematical model that includes, as parameters, stability constants (?) of homoligand and mixed-ligand ternary complexes and those of the quaternary [Cu2(Phen)(En)(Bp)]solv4+ complex. Based on the calculated electronic absorption spectra, the spectrochemical series for the compounds studied was constructed. The formation of the quaternary complex from mixed-ligand ternary complexes was found to result in a hypsochromic shift of the d-d absorption maximum.

AB - Electronic absorption spectroscopy was used to study the complex formation in water-dioxane solutions containing Cu(II), 4,4'-bipyridyl (Bp), 1,10-phenanthroline (Phen), and ethylenediamine (En). The nonlinear least-squares method and factor analysis showed that the most satisfactory description of the experimental dependences of absorbances on the concentrations of solution components is provided by a mathematical model that includes, as parameters, stability constants (?) of homoligand and mixed-ligand ternary complexes and those of the quaternary [Cu2(Phen)(En)(Bp)]solv4+ complex. Based on the calculated electronic absorption spectra, the spectrochemical series for the compounds studied was constructed. The formation of the quaternary complex from mixed-ligand ternary complexes was found to result in a hypsochromic shift of the d-d absorption maximum.

M3 - Article

SP - 216

EP - 221

JO - Russian Journal of Inorganic Chemistry

JF - Russian Journal of Inorganic Chemistry

SN - 0036-0236

IS - 2

ER -

ID: 5072358