Original scientific paper

Study of Simple and Mixed Ligand Complexes of Copper Ions with some Amino-Acids and Succinate Anions by Differential Pulse Polarography - II

H. M. Killa ; Chemistry Department, Faculty of Sciences, Zagazig University
E. M. Mabrouk ; Chemistry Department, Faculty of Sciences, Zagazig University
M. M. Moustafa ; Chemistry Department, Faculty of Sciences, Zagazig University
R. M. Issa ; Tanta University, Egypt

Abstract

The formation of binary and ternary complexes of some amino-acids (aspartic acid, glutamic acid and lysine) and succinate with Cu(II) have been investigated using differential pulse (d.p.) polarography. The results reveal the formation of one ternary complex with 1:1:1 stoichiometry. The reduction processes of all the systems were reversible and diffusion controlled. The formation constants of binary and ternary systems have been calculated. The mixed ligand stability constants were calculated statistically and compared/' with the observed values. The mixing, stabilization and disproportionation constants of the mixed species are also given.

Keywords

Hrčak ID:

137262

URI

https://hrcak.srce.hr/137262

Publication date:

29.2.1992.

Visits: 912 *