STABILITY OF METAL-ION UNSUBSTITUTED AND SUBSTITUTED MONOCARBOXYLATE COMPLEXES IN AQUEOUS-SOLUTIONS

Summarized results obtained in this laboratory on the stability of 90 metal ion complexes with unsubstituted and substituted monocarboxylate ligands, published elsewhere, have been analyzed. The contribution of ligand basicity, chelating effect, and metal ion order of stability are quantitized in order to give better insight into the stability of this class of weak coordinative interactions between metal ion and ligands. The special value of this analysis lies in the fact that all systems have been investigated with at least two independent physicochemical methods using identical or close to identical experimental conditions such as t = 25°C and I = 2 mol/L (NaClO4), but the same procedure can be used for any class of coordination compounds if reliable data on their stability are available. © 1990 American Chemical Society.