Dinitrogen and Carbon Dioxide Fixation by Transition Metal Oxo Complexes

摘要

In summary, we show that a variety of weakly bound complexes can be produced using laser vaporization technique. Examination of ligand exchange reactions of oxygen rich complexes of rhenium shows that this metal binds CO_2 more strongly than the dinitrogen ligand, in contrast with previous studies on several first-row transition metals, iron, cobalt or nickel. Evidence is presented that the type and degree of ligation, rather than differences in binding energies, determine the rate constants of gas phase ligand exchange reactions.