Spectroscopic characterization and investigation of the dynamic of charge compensation process of supramolecular films derived from tetra-2-pyridyl-1,4-pyrazine ligand - Alves, Wendel Andrade; Pfaffen, Valeria; Ortiz, Patrícia I.; Torresi, Susana Inês Córdoba de; Torresi, Roberto Manuel (Journal of the Brazilian Chemical Society, 2008)