BONDING PROPERTIES OF CARBON MONOXIDE ABSORBED ON METALS.

From the EHMO calculations, backbonding has been found to be the main contributing factor for C-O bond weakening, when CO adsorbs over Ni and Cu. The available EELS stretching frequency data are used to calculate the C-O bond energy at various coverages of CO on Pt, Ni, Ru and Pd. The increase in bond energy with increasing coverage in these cases also indicate that backbonding is the main contributing factor for C-O bond weakening.