Vanadyl(IV) Complexes of Sulfur-containing Ligands With Biological and Pharmacological Relevance, E.H.Hernández, P.G.Murga, E.G.Ferrer and P.A.M.Williams

E.H.HERNÁNDEZ; P.G.MURGA; E. G. FERRER; P. A. M. W ILLIAMS

JOURNAL OF COORDINATION CHEMISTRY

Año: 2000 vol. 49 p. 335 - 345

0095-8972

The behavior of thiosalicylic acid (H2TSA) and 6-mercaptopurine (MP) with vanadyl(IV) cation has been studied in solution at different ligand-to-metal ratios and pH values. The preparation and characterization of VO/TSA(I) and VO/MP(II) complexes in the solid state is reported. The chemical environment of V in (I) is consistent with S and O atoms of TSA and two hydroxy bridges between two metal centers. The nearest neighbor atoms to V in (II) are S and N provided by the ligand and O atoms from hydroxyl groups. These results have been supported by physicochemical studies.