Steric hindrance by ligands binding to vicinal sites increases the activation energy for nucleophilic displacement of the surface complexes to the point where the rate of this displacement drops below that of pure proton-promoted dissolution,
Steric hindrance by ligands binding to vicinal sitesincreases the activation energy for nucleophilic displacement of thesurface complexes to the point where the rate of this displacementdrops below that of pure proton-promoted dissolution,