Collect. Czech. Chem. Commun.
1992, 57, 1405-1409
https://doi.org/10.1135/cccc19921405
Study of the Mixed Coordinated Systems Cu(II)-Valinate Ion-Glycinate Ion and Cu(II)-Valinate Ion-Leucinate Ion
María Teresa Sanz Alaejosa, Jesús César Rodríguez Placeresb and Francisco J. García Montelongoa
a Department of Analytical Chemistry, University of La Laguna, Tenerife, Spain
b Department of Physical Chemistry, University of La Laguna, Tenerife, Spain
Abstract
The mixed ligand ternary systems Cu(II)-valinate ion-glycinate ion and Cu(II)-valinate ion-leucinate ion have been studied polarographically at 25 ± 0.1 °C and at ionic strength 1.0 mol l-1, adjusted with sodium perchlorate. The formation of the mixed complexes [Cu(Val-)(Gly-)] and [Cu(Val-)(Leu-)] have been verified, with stability constants β11 = (4.6 ± 0.2).1015 and β11 = (7.2 ± 0.3).1015, respectively.
