Potential-induced variations in properties for carbon monoxide adsorbed on a platinum electrode

A brief summary of the various theoretical models to explain the potential-induced vibrational frequency shifts of molecules adsorbed on electrode surfaces is presented. Possible implications of studies involving emersed electrodes for enhancing this understanding are discussed. The results of the variations of carbon monoxide properties as a function of potential on a Pt electrode are given, based on the atom superposition and electron delocalization molecular orbital theory, the valence band shift model, and a large cluster model of Pt(111). 45 ref.--AA