Published July 2006 | Version v1
Journal article Metadata-only

Investigation of interaction of rare earth ions with 3-allylpentanedione in aqua-dioxane media by the method of potentiometry

Creators

  • 1. Kubanskij Gosudarstvennyj Univ., Krasnodar (Russian Federation)

Description

Interaction of La, Pr, Nd, Sm, Eu, Gd, Dy, Er, Ho, Yb, Lu ions with 3-allylpentanedione (HL) is investigated by the method of pH-metric titration in aqua-dioxane media. Stability constants of LnL2+, LnL22+ and pH regions, whereof these complexes form, are determined. Stability constants dependence on order number of element shows that the strength of the complexes increases with decrease of Ln3+ ion size with characteristic sharp curve on gadolinium ion

Abstract (Russian)

Методом pH-метрического титрования исследовано взаимодействие ионов La, Pr, Nd, Sm, Eu, Gd, Dy, Er, Ho, Yb, Lu с 3-аллилпентандионом (HL) в водно-диоксановой среде. Определены константы устойчивости комплексов LnL2+, LnL22+ и области pH, в которых преимущественно образуются эти соединения. Зависимость констант устойчивости от порядкового номера элемента показывает, что прочность комплексов возрастает при уменьшении размера иона Ln3+ с характерным изломом на ионе гадолиния

Additional details

Additional titles

Original title (Russian)
Исследование взаимодействия ионов редкоземельных элементов с 3-аллилпентандионом в водно-диоксановой среде методом потенциометрии

Publishing Information

Journal Title
Zhurnal Obshchej Khimii
Journal Volume
76
Journal Issue
7
Journal Page Range
p. 1057-1060
ISSN
0044-460X
CODEN
ZOKHA4

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
38001940
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AQUEOUS SOLUTIONS; CHEMICAL PREPARATION; DIOXANE; DYSPROSIUM COMPLEXES; ERBIUM COMPLEXES; EUROPIUM COMPLEXES; GADOLINIUM COMPLEXES; HOLMIUM COMPLEXES; KETONES; LANTHANUM COMPLEXES; LUTETIUM COMPLEXES; NEODYMIUM COMPLEXES; PH VALUE; POTENTIOMETRY; PRASEODYMIUM COMPLEXES; SAMARIUM COMPLEXES; STABILITY; YTTERBIUM COMPLEXES
Descriptors DEC
CHEMICAL ANALYSIS; COMPLEXES; DISPERSIONS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; MIXTURES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; RARE EARTH COMPLEXES; SOLUTIONS; SYNTHESIS; TITRATION; VOLUMETRIC ANALYSIS

Optional Information

Notes
27 refs., 2 figs., 1 tab.