세자리 Schiff base Cobalt(Ⅱ)와 Nickel(Ⅱ) 착물들의 합성과 전기화학적 성질
Synthesis of tridentate Schiff base cobalt(Ⅱ) and nickel(Ⅱ) complexes and their electrochemical properties
광주보건전문대학논문집 1994년 19권 1호 p.141 ~ 156
소속 상세정보
정만태/Jung MT
이송주/채희남/정병구/Lee SJ/Chae HN/Jung BK
KMID : 0615219940190010141
Abstract
Co(Ⅱ) and Ni(Ⅱ) complexes containing tridentate Schiff base ligand SOIPH [salicylidene-o-iminopyridine] derived from salicylaldehyde with 2-aminopyridine were synthesized.
These complexes were characterized 표 elemental analysis, thermogravimetric analysis(T.G.A.), solution conductivity, and IR and UV-visible spectra. It was found that Co(Ⅱ) and Ni(Ⅱ) complexes had a 2 : 1 Schiff base ligand to metal(Ⅱ) ratio and were octahedral configuration.
The redox processes of these complexes in DMF and DMSO containing 0.1M TEAP as supporting electrolyte were investigated at glassy carbon electrode by cyclic voltammetry (CV) and at HMDE(hanging mercury drop electrode) by differential pulse polarographic (DPP) technique.
Reduction of Co(Ⅱ) complex was two steps, whereas Ni(Ⅱ) complex was one step.
Reduction of these complexes observed as one electron process irreversibly and diffusion- controlly.
Reduction of the Co(Ⅱ) complex was observed positive potential than Ni(Ⅱ) complex.
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