Doctor in Chemistry, National University of La Plata, 1967. 
Full Professor, National University of La Plata 
Member of the Research Career (Investigador Superior) of the National Research Council (CONICET). 
Academician of the National Academy of Exact, Physical and Natural Sciences and of the Third World Academy of Sciences (TWAS). 
baran@quimica.unlp.edu.ar
Tel/Fax (54) (0)221 424-0172/425-9485
Publications (PDF - 296 Kb)

Publications

Structural and Vibrational Spectra of the Copper(II) Complex of L-Selenomethionine

Z.Naturforsch. 60b, 663 (2005).

Structural and Spectroscopic Characterization of Aqua-diargininate-copper(II)-carbonate Dihydrate (with I. Viera, M.H. Torre, O.E. Piro and E.E. Castellano)

J.Inorg.Biochem. 99, 1250 (2005).

Evidence of Formation of Glushinskite as a Biomineral in a Cactaceae Species

(with P.V. Monje)

Phytochemistry 66, 611 (2005).

New Saccharinato/Ammonia Complexes of Nickel(II) and Zinc(II). A Structural and Spectroscopic Study (with P.A.M.Williams, E.G.Ferrer, N.Baeza and O.E.Piro)

Z.Anorg.Allg.Chem. 632, 619 (2006).

On the Interaction of Vanadium Species with meso-2,3-Dimercaptosuccinic Acid

(with P.A.M.Williams)

Biol.Trace Elem.Res. 109, 189 (2006).

Synthesis, Characterization and Biological Activity of Oxovanadium(IV) Complexes with Polyalcohols (with P.A.M.Williams, S.B.Etcheverry  and D.Barrio)

Carbohydr.Res. 341, 717 (2006).

Spectroscopic and Magnetic Properties of Fe₃^IIFe₄^III(AsO₄)₆ (with R.C.Mercader and M.Weil)

J.Phys.Chem.Solids, 67, 1781  (2006).

IR-spectroscopic characterization of NaLn^IIITiO₄ and AgLn^IIITiO₄ oxides related to the K₂NiF₄ structural type (with A.E.Lavat)

J.Alloys Compds., 419, 334 (2006).

Vibrational Properties of Tellurium Tetrachloride

Z.Naturforsch. 60a, 408 (2005).

Structural and Vibrational properties of Vanadium(III) Oxofluoride and Oxochloride – A Theoretical Study (with R.Pis-Diez)

J.Mol.Struct.THEOCHEM 732, 155 (2005).

Research Projects

Study of Inorganic Systems of Biological Interest (Bioinorganic Systems)

Different studies in relation to the Bioinorganic Chemistry of elements of the first transition metal series are performed, with emphasis on the bioinorganic chemistry of vanadium. Special attention is given to the investigation of the interaction of metal cations with ligands of biologic or pharmacologic interest and to the synthesis and characterization of model compounds, which allow a better insight into the biochemical properties of the investigated metals. Biomineralization systems and processes is another area of interest, especially in relation to biominerals isolated from plants. Recently, we have also started studies on the field of Inorganic Pharmacology (supplementation of essential elements, detoxification processes, physicochemical characterization of metal complexes with pharmacological activity). 

Study of Oxidic Materials

Structural, spectroscopic, magnetic and thermal properties of simple and mixed oxides as well as of oxoanions of different stoichiometry and structural types are investigated. Special emphasis is given to the new high Tc superconducting materials and related phases. Attempts to establish correlations between the vibrational and electronic properties and the structural characteristics of these materials are undertaken. Studies on inorganic pigments, of interest for the ceramic industry, are also in progress. 

Vibrational Properties of Inorganic Species

Different vibrational and bond properties for simple inorganic compounds are obtained by calculations based on spectroscopic and structural data. Systematic studies on the mean amplitudes of vibration of species with halogen-halogen bonds and of ions and molecules derived from heavy metals are currently in progress.