IQUIR   05412
INSTITUTO DE QUIMICA ROSARIO
Unidad Ejecutora - UE
artículos
Título:
The interaction between sulfathiazole and cobalt(II): potentiometric studies
Autor/es:
SEBASTIÁN BELLÚ, MARCELA RIZZOTTO, NORA OKULIK, ALICIA JUBERT
Revista:
QUÃMICA NOVA
Referencias:
Año: 2007 vol. 30 p. 1136 - 1142
ISSN:
0100-4042
Resumen:
Potentiometric studies of sulfathiazole (HST) in the presence and absence of cobalt(II) were performed. Equilibrium constants for
the formation of the detected species, [Co(ST)]+ and [Co(ST)(OH)], are reported. UV-Vis spectrophotometric measurements suggest
that the coordination Co(II)-sulfathiazole might be through a N atom, which, in agreement with MO calculations, could be a thiazolic
one. In spite of sulfonamides being better ligands at pH >7, [Co(ST)]+ was found at pH ¡Ö 3.
that the coordination Co(II)-sulfathiazole might be through a N atom, which, in agreement with MO calculations, could be a thiazolic
one. In spite of sulfonamides being better ligands at pH >7, [Co(ST)]+ was found at pH ¡Ö 3.
+ and [Co(ST)(OH)], are reported. UV-Vis spectrophotometric measurements suggest
that the coordination Co(II)-sulfathiazole might be through a N atom, which, in agreement with MO calculations, could be a thiazolic
one. In spite of sulfonamides being better ligands at pH >7, [Co(ST)]+ was found at pH ¡Ö 3.+ was found at pH ¡Ö 3.