Hydroxamic Acids and Their Metal Complexes: Preparation, Properties, and Infrared Spectra

Abstract

The preparation and properties of ten metal complexes of N-phenyl-benzohydroxamic acid (PBHA) with Mg⁺², Zr⁺⁴, Cd⁺², Sb⁺³, La⁺³, Ce⁺³, Pr⁺³, Nd⁺³, Sm⁺³, and Th⁺⁴ have been described. These solid-metal complexes were prepared by reacting an aqueous solution of the metal ion with an alcohol solution of PBHA at 60° and adjusting the pH. The pH range for precipitation of these complexes is between 2 to 10. The infrared spectra of these complexes have been discussed.