Potentiometric and H-1 NMR studies of binary and ternary complexes of thiamine hydrochloride with copper (II), zinc (II), nickel (II) or cobalt (II) and various secondary ligands
Ag. Devi et S. Satyanarayana, Potentiometric and H-1 NMR studies of binary and ternary complexes of thiamine hydrochloride with copper (II), zinc (II), nickel (II) or cobalt (II) and various secondary ligands, I J CHEM A, 38(6), 1999, pp. 624-627
Citations number
18
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
The interaction of thiamine hydrochloride with Cu (II), Zn (II), Ni (II), C
o (II) and different secondary ligands like imidazole, tryptophan, phenylal
anine, pyridine, 2,5-dicarboxylic acid, thiodiacetic acid, thiodipropionic
acid and iminodiacetic acid have been studied potentiometrically. The inter
action of these ligands with thiamine and tryptophan or thiamine and imidaz
ole with Zn (II) in D2O solution have also been studied by H-1 NMR and the
changes observed confirm the inter-ligand interactions between thiamine and
TRP or thiamine and imidazole. The electronic spectra also confirm the int
er-ligand interactions between thiamine and TRP or phenylalanine.