Studies on the Sulfur-containing Chelating Agents. XLIII. The Reaction of Thio-β-diketones and the Related Compounds with Iron (II) in the Presence of Pyridine

Abstract

The formations of the adduct complex of the type (ligand)₂ Fe (II) (base) n (n=1 or 2) were observed in the reacton of some thio-β-diketones, and the corresponding β-diketones with iron (II) ion in the presence of pyridine base. Paramagnetic shifts were observed in γ-picoline adducts. The use of thiothenoyltrifluoroacetone, thiodibenzoylmethane and dibenzoylmethane gave satisfactory result in the determination of less than 60μg of iron as an extraction-spectrophotometric reagent, based on their adduct formation reaction with pyridine.