| Abstract: | Abstract ESCA results for four tetraaza macrocyclic ligands and their silver(II) complexes have been measured. The Ag 3d binding energies of these complexes fall in the narrow range of 374.3–375.3 eV (3d3/2) and 368.2–375.3 eV (3d3/2) and 368.2–369.3 eV (3d5/2) which are in agreement with the Eb values published previously for silver(II) complexes containing nitrogen donor ligands. Ring substitution with methyl groups has no pronounced influence on the Ag 3d, binding energies while ring size variation does cause a small shift in the binding energies. Ring strain energy is invoked as the probable reason for the observed effect. |
