- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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Studies on Electroanalytical Chemistry for the Oxygen Adducted Tetradentate Schiff base Cobalt(III) Complexes in Pyridine Solution
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.1, pp.55-62
Rim,
C., Chae,
H., Chjo,
K., &
Choi,
Y.
(1995). Studies on Electroanalytical Chemistry for the Oxygen Adducted Tetradentate Schiff base Cobalt(III) Complexes in Pyridine Solution. Analytical Science and Technology, 8(1), 55-62.
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Abstract
Tetradentate Schiff base cobalt(II) complexes such as <TEX>$Co(II)_2-N$</TEX>, N-bis(salicylidene)-m-phenylendiimine; [<TEX>$Co(II)_2(SMPD)_2(H_2O)_4$</TEX>] and <TEX>$Co(II)_2-N$</TEX>, N-bis(salicylidene)-p-phenylendiimine: [<TEX>$Co(II)_2(SPPD)_2(H_2O)_4$</TEX>], and oxygen adducted cobalt (III) complexes such as [<TEX>$Co(III)_2O_2(SMPD)_2(Py)_2$</TEX>] and [<TEX>$Co(III)_2O_2(SPPD)_2(Py)_2$</TEX>] in pyridine solutions were synthesized. It was identified that the oxygen adducted cobalt(III) complexes have hexacoordinated octahedral configuration with pyridine and oxygen from the measurement of elemental analysis, AA, IR spectra, and TGA. The redox processes were investigated for the oxygen adducted complexes in 0.1M TEAP-pyridine solution, using cyclic voltammetry on the glassy carbon electrode. The redox processes of oxygen adducted Co(III) complexes result in <TEX>$$[Co(III)_2-O_2-CO(III)]\rightarrow^{e^-}[Co(III)-O_2-Co(II)]\rightarrow^{e^-}[Co(II)-O_2-Co(II)]\rightleftarrows^{e^-}[Co(II)+Co(II)+O_2{\cdot}^-]\rightleftarrows^{e^-}[Co(II)+Co(I)+O_2{\cdot}^-]\rightleftarrows^{e^-}[Co(I)+Co(I)+O_2{\cdot}^-]$$</TEX>.
- keywords
- Schiff base cobalt(II) complex, Catalytic effect
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