Effect of F- Axial Coordination on the Electrochemistry of (TPP)Co

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (2): 220.

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Effect of F^- Axial Coordination on the Electrochemistry of (TPP)Co

YAN Chuan-Wei, LIN Xiang-Qin

Laboratory of Electroanalytical Chemistry of Institute of Applied Chemistry of Chinese Academy of Sciences, National Analytical.Research Center of Electrochemistry and Spectroscopy, Changchun, 130022

Received:1996-01-04 Online:1997-02-24 Published:1997-02-24

Abstract

Abstract: The axial coordination effect of F^- on the redox behavior of (TPP)Co was investigated by F^- titration with cyclic voltammetry detection and spectroeletrochemistry in dichloroethane.It was verified that mono(F^-) axial adduct (TPP)Co(N) (F^-) could be reduced at O.1 V(SCE), and bis(F^-) axial adduct (TPP)Co(Ⅲ) (F^-)₂ formed with added Fmolar ratio>1 could be reduced at the potential <-0.6 V(SCE).The equilibrium between (TPP)Co(Ⅲ) (F^-) and (TPP)Co (Ⅲ) (F^-)₂ was demonstrated.

Key words: Electrochemistry titration, Axial coordination, Cobalt (Ⅱ) tetraphenylporphyrin, Spectroelectrochemistry

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YAN Chuan-Wei, LIN Xiang-Qin. Effect of F^- Axial Coordination on the Electrochemistry of (TPP)Co[J]. Chem. J. Chinese Universities, 1997, 18(2): 220.

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Effect of F^- Axial Coordination on the Electrochemistry of (TPP)Co

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