16 research outputs found
A photophysical and spectroelectrochemical study on N-phenyl-carbazoles and their oxidized species
A series of N-phenyl-carbazole derivatives namely TCz (N-tolyl-carbazol), TCz-TCz (a 3,3´-linked dimer), and CzPh-CH2-PhCz (a methylene-bridged N-phenyl-carbazole), have been synthesized and studied by means of absorption and fluorescence spectra, DFT calculations, cyclic voltammetry and spectroelectrochemistry. It is concluded that the methylene bridge in CzPh-CH2-PhCz isolates the two TCz units, whereas TCz-TCz allows extending the electronic coupling along both carbazoles. Moreover, the phosphorescence spectrum of TCz-TCz showed a high energy triplet state (2.76 eV). It was observed that oxidation of CzPh-CH2-PhCz generates an electrochromic polymer containing TCz-TCz dimer units separated by methylene bridges. Oxidized TCz-TCz subunit was analyzed by EPR spectroscopy, and found to be a Class III mixed valence ion in Robin and Day classification. All results suggest that these molecules might be suitable as selective probes in fluorescence sensing or as host materials in electroluminescent devices.Fil: Ramirez, Cristina Lujan. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y BiotecnologĂa; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de QuĂmica; ArgentinaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Bertolotti, Sonia Graciela. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Arbeloa, Ernesto Maximiliano. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Parise, Alejandro Ruben. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de QuĂmica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y BiotecnologĂa; Argentin
Synthesis and properties of Thieno[3,2-f]isoquinolines and Benzothieno[3,2-f]isoquinolines
A variety of thieno[3,2-f]isoquinolines were prepared by combination of Pd catalysed cross-coupling reactions with Brønsted acid mediated cycloisomerisations. The reactions tolerate various functional groups and proceed with high selectivity. In addition, benzothieno[3,2-f]isoquinolines were prepared which represent a new heterocyclic core structure. The optical properties of selected compounds were studied by experimental and theoretical methods. Emission solvatochromism, characteristic of intramolecular charge transfer was observed for one of the compounds with a push-pull structure.Fil: Blanco Ponce, Marian. Universität Rostock; AlemaniaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Hermosilla Espinosa, Robinson. University Of Granma; CubaFil: Torres Rodriguez, Eugenio. University Of Granma; CubaFil: Ehlers, Peter. Universität Rostock; AlemaniaFil: Langer, Peter. Universität Rostock; Alemani
Antimicrobial photodynamic polymeric films bearing biscarbazol triphenylamine end-capped dendrimeric Zn(II) porphyrin
A novel biscarbazol triphenylamine end-capped dendrimeric zinc(II) porphyrin (DP 5) was synthesized by click chemistry. This compound is a cruciform dendrimer that bears a nucleus of zinc(II) tetrapyrrolic macrocycle substituted at the meso positions by four identical substituents. These are formed by a tetrafluorophenyl group that possesses a triazole unit in the para position. This nitrogenous heterocyclic is connected to a 4,4′-di(N-carbazolyl)triphenylamine group by means of a phenylenevinylene bridge, which allows the conjugation between the nucleus and this external electropolymerizable carbazoyl group. In this structure, dendrimeric arms act as light-harvesting antennas, increasing the absorption of blue light, and as electroactive moieties. The electrochemical oxidation of the carbazole groups contained in the terminal arms of the DP 5 was used to obtain novel, stable, and reproducible fully Ď€-conjugated photoactive polymeric films (FDP 5). First, the spectroscopic characteristics and photodynamic properties of DP 5 were compared with its constitutional components derived of porphyrin P 6 and carbazole D 7 moieties in solution. The fluorescence emissions of the dendrimeric units in DP 5 were more strongly quenched by the tetrapyrrolic macrocycle, indicating photoinduced energy transfer. In addition, FDP 5 film showed the Soret and Q absorption bands and red fluorescence emission of the corresponding zinc(II) porphyrin. Also, FDP 5 film was highly stable to photobleaching, and it was able to produce singlet molecular oxygen in both N,N-dimethylformamide (DMF) and water. Therefore, the porphyrin units embedded in the polymeric matrix of FDP 5 film mainly retain the photochemical properties. Photodynamic inactivation mediated by FDP 5 film was investigated in Staphylococcus aureus and Escherichia coli. When a cell suspension was deposited on the surface, complete eradication of S. aureus and a 99% reduction in E. coli survival were found after 15 and 30 min of irradiation, respectively. Also, FDP 5 film was highly effective to eliminate individual bacteria attached to the surface. In addition, photodynamic inactivation (PDI) sensitized by FDP 5 film produced >99.99% bacterial killing in biofilms formed on the surface after 60 min irradiation. The results indicate that FDP 5 film represents an interesting and versatile photodynamic active material to eradicate bacteria as planktonic cells, individual attached microbes, or biofilms.Fil: Heredia, Daniel Alejandro. Universidad Nacional de RĂo Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; ArgentinaFil: Martinez, Sol Romina. Universidad Nacional de RĂo Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; ArgentinaFil: Durantini, Andres MatĂas. Universidad Nacional de RĂo Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; ArgentinaFil: PĂ©rez, MarĂa Eugenia. Universidad Nacional de RĂo Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; ArgentinaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Durantini, Javier Esteban. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados; ArgentinaFil: Gervaldo, Miguel Andres. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados; ArgentinaFil: Otero, Luis Alberto. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados; ArgentinaFil: Durantini, Edgardo NĂ©stor. Universidad Nacional de RĂo Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentin
Cellulose recycling as a source of raw chirality
Modern organic chemistry requires easily obtainable chiral building blocks that show high chemical versatility for their application in the synthesis of enantiopure compounds. Biomass has been demonstrated to be a widely available raw material that represents the only abundant source of renewable organic carbon. Through the pyrolitic conversion of cellulose or cellulose-containing materials it is possible to produce levoglucosenone, a highly functionalized chiral structure. This compound has been innovatively used as a template for the synthesis of key intermediates of biologically active products and for the preparation of chiral auxiliaries, catalysts, and organocatalysts for their application in asymmetric synthesis.Fil: Biava, Hernan Daniel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Suarez, Alejandra Graciela. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Mata, Ernesto Gabino. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Sarotti, Ariel Marcelo. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Corne, Valeria. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Botta, MarĂa Celeste. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Giordano, Enrique David Victor. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Giri, German Francisco. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Llompart, David Fernando. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; Argentin
Synthesis of nitrogenated scaffolds derived from fluorene by a modified Ullmann type reaction
Two novel aromatic molecules were synthesized via a modified Ullmann coupling starting from a known compound 2,7-diiodofluorenone with carbazole derivatives. These compounds were obtained in very good yields. Due to their fluorophore components, like fluorenone and carbazole, they could be applied as scaffolds for the development of organic materials like dendrimers and polymers.Fil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; Argentin
Efficient and straightforward click synthesis of structurally related dendritic triazoles
A simple, rapid and efficient copper-catalyzed 1,3-dipolar cycloaddition reaction is described for the synthesis of a novel family of twelve triazolic dendrimers structurally related. The products were the result of the click reaction of three cores and four different azides in tetrahydrofuran applying a homogeneous copper catalysis. The reaction intermediates and products were obtained in very good to excellent yields using straightforward and simple work-up procedures. This new family of compounds contain electroactive moieties such as carbazole and triphenylamine which may turn them into excellent candidates for the development of optoelectronic organic materials.Fil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Anzardi, M. B.. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; Argentin
Novel Turtle-Shape Dendrimers Based on a Pyrene Core
The design and synthesis of X-shaped molecules bases on a central pyrene is reported. A Sonogashira cross-coupling reaction was applied to successfully bond the pyrene core through acetylene linkages to electroactive dendrons moieties such as triphenylamine or carbazole. Dendrons were functionalized with bulky alkyl groups to disrupt Ď€-Ď€ stacking interactions and consequently affording soluble dendrimers. These novel Ď€-conjugated turtle-shape dendrimers are organic materials with great potential applications in optoelectronic devices.Fil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Cappellari, MarĂa Victoria. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados; ArgentinaFil: Fungo, Fernando Gabriel. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados. - Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - CĂłrdoba. Instituto de Investigaciones en TecnologĂas EnergĂ©ticas y Materiales Avanzados; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; Argentin
End-group differentiating ozonolysis of norbornene systems to access to highly substituted cyclopentane rings
The end-group-differentiating ozonolysis concept is discussed, with an emphasis on norbornene systems. Different remote functional groups in endo positions in norbornene derivatives are able to direct the primary ozonide fragmentation. By analysis of the factors affecting the regioselectivity, a rule to predict the direction of the primary ozonide rupture is formulated. These reactions give access to highly substituted cyclopentane rings and provide opportunities for their subsequent regioselective manipulation.Fil: Testero, Sebastian Andres. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Suarez, Alejandra Graciela. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Rosario. Instituto de QuĂmica Rosario; Argentin
Insights into the synthesis of hexaaminobenzene hydrochloride: An entry to hexaazatriphenylenes
Polycyclic N-heteroaromatic systems and particularly, the dipyrazino[2,3-f:2′,3′-h]quinoxaline also known as 1,4,5,8,9,12-hexaazatriphenylene (HAT) displays very useful optoelectronic properties. Its synthesis through condensation of functionalized 1,2-diketones and hexaaminobenzene is often applied on laboratory scale. Hexaaminobenzene could be prepared from 4-nitroaniline but, despite its many applications, the experimental protocol is not trivial and should by carefully controlled in each step. In this work, we presented an efficient and reproducible 4 steps synthesis of hexaaminobenzene hydrochloride and a comprehensive analysis of reactions conditions and products formed in all synthetic steps. As evidence, this aromatic polyamine was effectively condensed with 1,2-di(4-bromophenyl)-1,2-ethanedione affording a synthetically versatile HAT derivative for the application in the design of organic materials.Fil: Vázquez, Darián. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Comba, MarĂa Betina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Libonatti, Bernardo. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; Argentin
Electrochemical films deposition and electro-optical properties of bis-carbazol-triphenylamine end-caped dendrimeric polymers
A family of structurally related Ď€-conjugated star-shape bis-carbazol-triphenylamine end-caped dendrimers was designed, synthetized and characterized as novel organic optoelectronic materials. These compounds hold triphenylamine and carbazole electroactive moieties as dendrimer core and/or periphery groups. Homogeneous and stable electrogenerated polymeric films were obtained from dendrimers over Pt and ITO electrodes. These films showed charge conductivities, reversible electrochemical behavior and electrochromic effect. The hole mobility of the electrodeposited films was found to be dependent of the dendrimeric structure and film morphologies, indicating that the shape and size of the studied dendrimers have a strong effect on their charge transport properties. These results provide data that will contribute to the systematic study for the design of new dendrimers as starting materials for conductive polymers films with potential applications in optoelectronic devices.Fil: Mangione, Maria Ines. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Spanevello, Rolando Angel. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de QuĂmica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de QuĂmica Rosario; ArgentinaFil: Minudri, Daniela. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica. Area ElectroquĂmica; ArgentinaFil: Cavallo, Pablo CĂ©sar. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica. Area ElectroquĂmica; ArgentinaFil: Otero, Luis Alberto. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica. Area ElectroquĂmica; ArgentinaFil: Fungo, Fernando Gabriel. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas FisicoquĂmicas y Naturales. Departamento de QuĂmica. Area ElectroquĂmica; Argentin