INFLUENCE OF LATERAL INTERACTIONS ON THE VIBRATIONAL-SPECTRUM OF ADSORBED CO

Vibrational spectroscopy of adsorbed CO often reveals strong shifts of the CO stretch absorption band to higher frequencies as a function of increasing coverage. It is shown that such shifts are due essentially to dipole-dipole interactions. The extent of the experimentally observed effect can, however, only be reproduced when screening by the substrate is taken into account properly. © 1979.