MOLECULAR ADSORPTION AT METAL-ELECTRODES

This paper gives a brief review of our efforts to describe adsorption of organic molecules at gold and silver electrodes. We are using, as a n example, pyridine to show the differences between adsorption of mole cules at group IB metals and their adsorption at mercury (sp metal) or platinum (d metal) electrodes. We discuss the relationship between th e character of adsorption and the electronic structure of the metal. L ater, we describe the effect of surface crystallography on pyridine ad sorption at gold single crystal electrodes. Finally, we assess the eff ect of molecular adsorption on the reconstruction phenomena using seco nd harmonic generation (SHG) and electroreflectance (ER) spectroscopie s.