Dergiler / Turkish Journal of Chemistry / 2007 / Cilt: 31 - Sayı: 2

Voltammetric and Spectroscopic Studies of Vanadium(V)-- Nicotinamide Interactions at Physiological pH

Sayfa
223–231
DOI
—

Özet

The interaction of nicotinamide (NA) with NH4VO3 at the physiological pH (pH 7.4) was studied by voltammetry and UV-Vis spectroscopy. The reduction of V(V) ions complexed with NA in phosphate buffer (pH 7.4) was observed as a well-defined reversible reduction peak at --0.35 V. The stoichiometric (metal:ligand) ratio of the complex of V(V) with NA was determined as 1:2 by the mole ratio method.

Abstract

The interaction of nicotinamide (NA) with NH4VO3 at the physiological pH (pH 7.4) was studied by voltammetry and UV-Vis spectroscopy. The reduction of V(V) ions complexed with NA in phosphate buffer (pH 7.4) was observed as a well-defined reversible reduction peak at --0.35 V. The stoichiometric (metal:ligand) ratio of the complex of V(V) with NA was determined as 1:2 by the mole ratio method.

Anahtar kelimeler: Vanadium complexes, nicotinamide, voltammetry, spectroscopy