Heterogeneous photocatalytic oxidation of cyanide and sulfite in aqueous solutions at semiconductor powders

Suggesting that there are at least two kinds of metal-C0 bonds involved which undoubtedly have different bond energies and that their approximate ratio is 5/1, the type of site greatest in quantity being that which bonds most strongly with CO. There may be other types of sites or these two kinds may actually include subtypes which have bond energies so close as to be indistinguishable by this experimental technique. Since the room temperature rate constant for displacement for process I is about 7 times greater than that for process 11, the activation energy for process I1 must be 1200 cal greater than that for process I. This suggests that the CO displaced in process I1 might be bonded to the metal 1200 cal more strongly than that which is displaced