Collect. Czech. Chem. Commun. 1987, 52, 592-601

Binuclear complexes of aminoacetohydroxamic acid with copper(II) and iron(III)

Rolf Karlíček and Miroslav Polášek

Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, 501 65 Hradec Králové


Aminoacetohydroxamic acid (glycinehydroxamic acid, H2NCH2CONHOH) (HL) forms the complex species FeHL3+, Cu2H-1L2+ and CuFeH-1L3+ at cM > cL. The two binuclear complexes were proved to be formed with the elimination of two hydrogen ions from one hydroxamic functional group, the amide nitrogen atom of the hydroxamic group taking part in the coordination. The spectrophotometric characteristics of the complexes and the equilibrium constants of the reactions involved are given.