Structure and stability of carboxylate complexes. Part 16. Stability constants of some mercury (II) carboxylates

Abstract

Complex formation between mercury(II) ions and a series of unsubstituted and substituted monocarboxylates (including some potentially bidentate ligands) has been studied by precise potentiometric titration at 25.00 °C in a 3 mol dm^–3 sodium perchlorate medium. A linear-free-energy plot indicates that unidentate complexes are formed in all of the systems studied, and that Hg^II does not form five-, six-, or seven-membered chelate rings with appropriately O-substituted carboxylates.