Electrochemical Properties of Copper(II) Complexes with Multidentate N,O-Schiff Base Ligands
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.4, pp.345-354
Kim, Sun-Deuk
Jang, Gi-Ho
Kim, Jun-Kwang
Lee, Seong-Woo
Joung, Jae-Joung
Kim,
S., Jang,
G., Kim,
J., Lee,
S., &
Joung,
J.
(1996). Electrochemical Properties of Copper(II) Complexes with Multidentate N,O-Schiff Base Ligands. , 9(4), 345-354.
Abstract
Algal(II) Multidentate N, O-Schiff base ligands, such as bis(salicylaldehyde) ethylenediimine(SED), bis(salicylaldehyde) propylenediimine(SPD), bis(salicylaldehyde) diethylenetriimine(SDT), bis (salicylaldehyde) triethylenetetraimine(STT) and bis(salicyl-aldehyde)tetraethylenepentaimine(STP) were prepared. Stepwise proton dissociation constants of the Schiff base were measured potentiometrically in ethanol and a mixture of 70% dioxane and 30% $H_2O$. The stability constants of copper(II)-Schiff base complexes were in the order of Cu(II)-SPD${\leq}$Cu(II)-SED~STT${\leq}$Cu(II)-STP. Oxidation-reduction process of the Cu(II)-Schiff base complexes was involved with one-electron reaction.
- keywords
-
N,
O-Schiff base,
ligands,
proton dissociation constants,
stability constants