The formation constants and structures of copper(II)-glycinehydroxamic acid complexes

Formation constants for the complexes formed between copper(II) and glycinehydroxamic acid (H₂NCH₂CONHOH) have been measured potentiometrically at 25.0 °C and I = 0.10 M (NaClO₄). The existence of a dimeric copper(II) species has been shown from the line broadening of the epr spectrum of a solution at room temperature. The structures of the complexes are discussed and conclusions are drawn based on absorption and epr spectra.