Aqueous Complexation of Y-III, La-III, Nd-III, Sm-III, Eu-III, and Yb-III with Some Heterocyclic Substituted beta-Diketones

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1002/ejic.201403052

Ключевые слова: Lanthanides, O ligands, Ab initio calculations, Heterocycles

Аннотация: This paper deals with spectrophotometric investigation on complexation of Y-III, La-III, Nd-III, Sm-III, Eu-III, and Yb-III metal ions with six heterocyclic substituted -diketones. The stability constants of 36 monocomplex species was determined in aqueous solutions at 298 K and I = 0.25; it lay in the range from 5.14 to 9.76 logarПоказать полностьюithmic units. The influence of the natures of the metal and ligand on the stability constant along with the dependence of the stability constant on an ionic potential (z/r) was studied and is discussed. The acid-base, tautomeric, and dimeric equilibriums of the studied substituted -diketones have been investigated using UV/Vis and H-1 NMR spectroscopy. Also, ab initio calculations of electronic structures of metal aquacomplex species, anions of -diketones, and their complex species have been carried out.

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Издание

Журнал: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY

Выпуск журнала: Is. 6

Номера страниц: 1074-1082

ISSN журнала: 14341948

Место издания: WEINHEIM

Издатель: WILEY-V C H VERLAG GMBH

Авторы

  • Petrov A.I. (Institute of Non-Ferrous Metals and Materials Science, Siberian Federal University)
  • Lutoshkin M.A. (Institute of Non-Ferrous Metals and Materials Science, Siberian Federal University)
  • Taydakov I.V. (P. N. Lebedev Institute of Physics, Russian Academy of Sciences)

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