Affiliation: | 1.Área de Fisicoquímica, Facultad de Ciencias Exactas, Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina; E-mail: ;2.INIFTA, Theoretical Chemistry Division, Suc. 4, C.C. 16, La Plata 1900, Buenos Aires, Argentina; E-mail: ; ;3.CEQUINOR, Chemistry Department, Faculty of Exact Sciences and Engineering Faculty, La Plata National University, C.C. 962, La Plata 1900, Buenos Aires, Argentina |