Electrostatic interactions between organic ions

Abstract

Association constants of organic cations and anions with different charge separations, rigidity and shapes have been studied and have been compared with association constants of inorganic cations with the organic anions and also with the association constants of inorganic ions. Bjerrum's theory of ion-pair formation is applicable to spherical inorganic ions but not to ions which have anisotropic charge distributions and shape. For the latter, charge matching becomes an important factor in the association and is most effective when the ions are rigid.