“…Continuing to study on potential functional coordination and especially on the structure exploration by XPS spectra [7][8][9][10][11][12], a new macromolecule and its mixed-valent copper(I, II) and iron(II, III) complexes have been synthesized from a polymer ligand, which achieved by using ethylenediamine as core and maleic anhydride as branched units. The possible structures of the polymer and its complexes are defined on the basis of their UV, IR and XP spectra analysis, and the thermal stability in air has also been studied.…”