Theoretical Estimates of Association Constants for Contact Triple-Ion Formation

Abstract

Abstract A formula for the calculation of formation constants for ion-triplets in contact, KIT, is derived on the basis of a thermodynamic argument. This approach also yields an expression for the association constants for ion-pairs, ΚIP, within the same approximation, leading to a modification of the familiar Fuoss equation. The formula for K1T is compared with literature data for transition metal cyano complexes.