Electrode kinetics and polarographic study of mixed ligand complexes of zinc(II)-L-aminoacidate-alpha-picoline system

Authors
Vajhallya, S Khan, F
Citation
S. Vajhallya et F. Khan, Electrode kinetics and polarographic study of mixed ligand complexes of zinc(II)-L-aminoacidate-alpha-picoline system, J INDIAN CH, 76(6), 1999, pp. 292-295
Citations number
20
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
ISSN journal
00194522 → ACNP
Volume
76
Issue
6
Year of publication
1999
Pages
292 - 295
Database
ISI
SICI code
0019-4522(199906)76:6<292:EKAPSO>2.0.ZU;2-E
Abstract
Polarographic technique has been used to determine the stability constants (log beta) of ternary complexes of Zn-11 with L-lysine, L-ornithine, L-seri ne, L-phenylglycine, L-phenylalanine, L-glutamic acid and L aspartic acid a s primary Ligands and a picoline as secondary ligand at pH = 8.50 +/- 0.01 and ionic strength mu = 1.0 M (NaClO4) at 25 degrees. The waves of Zn and i ts complexes are quasireversible. Zn forms 1 : 1 : I, I: 1 : 2 and 1 : 2 : 1 complexes. The kinetic parameters are also determined.