| 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  =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.Institute of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka. I. I. Mechnikov Odessa State University, 270000 Odessa. Odessa Institute of Physical Chemistry, Ukrainian Academy of Sciences, 270050 Odessa. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 9, pp. 2066–2073, September, 1992. |
