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Preparation and reactivity of metal-containing monomers. 24. Equilibrium in solutions of metal(II) complexes with methacroylacetone

  • T. I. Movchan
  • I. I. Zheltvai
  • I. S. Voloshanovskii
  • A. D. Pomogailo
Physical Chemistry
  • 23 Downloads

Abstract

Stability constants of Mg, Ca, Sr, Ba Mn, Co, Ni, Cu, and Zn complexes with the polymerizable ligand methacrylacetone have been determined in aqueous-dioxane solutions at an ionic strength of μ=0.1 at 22°C. The methacroylacetone was shown to contain ∼30% in the enol form using the pH-meter method. The stability sequence of the transition-metal complexes corresponds to the Irving — Williams stability series for ligands of low molecular weight; for the alkaline-earth metals the stability of the complexes increases with increase in ionic radius. Methacroylacetone-based chelates are significantly less stable than their analogs with unsubstituted acetylacetone.

Keywords

alkaline-earth metals 3d metals methacroylacetone ionic strength pH-meter method transitionmetal complexes 

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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • T. I. Movchan
  • I. I. Zheltvai
  • I. S. Voloshanovskii
  • A. D. Pomogailo

There are no affiliations available

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