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Stability of rare-earth complexes with acetylacetone and methaccrylic acid in aqueous solution

Journal Article · · Russian Journal of Coordination Chemistry
OSTI ID:160074
;  [1]
  1. Kuban` State Univ., Krasnodar (Russian Federation)

The stability constants for lanthanide (Ln) complexes with methacrylic acid (HL) (log{beta}{sub LnL}{sup Ln}), acetylacetone (HAA) (log{beta}{sub Ln(AA){sub 3}}{sup Ln}), and mixed-ligand complexes (log{beta}{sub LnL(AA){sub 2}}{sup Ln}), [Ln(III)=La, Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er, Yb, Lu] in aqueous solution are determined by potentiometric titration at 25{degrees}C and {mu}=0.1 (KCl). A nonmonotonous change in the stability constants with an increase in the atomic number number of the rare-earth metal is found to occur.

OSTI ID:
160074
Journal Information:
Russian Journal of Coordination Chemistry, Journal Name: Russian Journal of Coordination Chemistry Journal Issue: 9 Vol. 21; ISSN RJCCEY
Country of Publication:
United States
Language:
English

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