CHARGE STRIPPING OF LIGATED METAL-IONS

The use of charge stripping to determine bond dissociation energies is evaluated with doubly charged first row metal hydroxides that are acc essible by fast atom bombardment. Dications are produced by charge str ipping of the monocation precursor. A linear behavior is obtained betw een the bond dissociation and the second ionization energies of the ba re metals. To assess the validity of the determined emi, values, the m inimum shift in the kinetic energy of the dication relative to the mon ocation, the conditions of ion formation and type of charge stripping gas are investigated using ligated magnesium species. Molecular orbita l calculations are also performed on ligated magnesium species to inve stigate whether vibrational or electronic excitation, which may affect the determined Q(min) values, are present during ionization.