ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Factors affecting copper(II) reduction in aqueous solutions containing glycine

K. Cedzynska, H. Langfelderová, and J. Gažo

Institute of Food Chemistry, Polytechnical University of Lodz, Lodz, Poland

Abstract: Investigation of the reaction of glycine with Cu(II) in strongly acidic aq. solns. showed that in the presence of Cl^- ions a redox process occurs, accompanied by sepn. from concd. aq. solns. of glossy black-green crystals contg. both Cu(II) and Cu(I). The compn. of the crystals depends on the conditions of their prepn. Chem. anal. led to the identification of Cu₂Cl₃.2gly (gly = glycine) and Cu₃Cl₅.4gly. Exptl. results obtained indicate that redn. of Cu(II) is connected with a mutual influence of ligands in the coordination sphere of Cu(II) complexes.

Full paper in Portable Document Format: 352a223.pdf

Chemical Papers 35 (2) 223–228 (1981)