Raman, IR, UV-vis and EPR characterization of two copper dioxolene complexes derived from L-dopa and dopamine - Barreto, Wagner José; Barreto, Sônia Regina Giancoli; Ando, Rômulo Augusto; Santos, Paulo Sérgio; DiMauro, Eduardo; Jorge, Thiago (Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2008)