Linear free energy relationships and kinetics of ligand substitutions: Correlations of rate constants with overall stability constants of reactive intermediate species in the stepwise formation of pentacyanohydroxoferrate(III) from monohydroxoaminocarboxylato iron(III) complexes

Summary A linear free energy relationship has been proposed between stepwise rate constants and the overall stability constants of the intermediates of the type FeL(OH)(CN)_x (where x=0, 1, 2 and 3) formed in the five step reaction mechanism of CN^– with FeLOH, where L denotes aminocarboxylatesviz. EDTA, HEDTA and DTPA.