A Mechanistic Study of Electrochemical Oxidation Processes of (OEP)Mg(Ⅱ) in the Presence of Anions

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (9): 1442.

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A Mechanistic Study of Electrochemical Oxidation Processes of (OEP)Mg(Ⅱ) in the Presence of Anions

WANG Zhen-Xin¹, LIU Dian-Jun¹, LIN Xiang-Qin²

1. Laboratory of Electroanalytical Chemistry and National Analytical and Research Center of Electrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academp of Sciences, Changchun 130022;
2. Department of Chemistry, Chinese University of Science arid Technology, Hefei 230026, China

Received:1998-08-31 Online:1999-09-24 Published:1999-09-24

Abstract

Abstract: In the presence of F^-, OH^-, Cl^-, electrochemical redox of (OEP)Mg(Ⅱ) [2,3,7, 8, 12, 13, 17, 18 octaethy1-21H, 23H-porphine magnesium (Ⅱ)] are investigated in DCE/0.1 mol/Lsolution by cyclic votammetry and spectroelectrochemistry.In the presence of anions, anions are axially coordinated to (OEP)Mg(Ⅱ) generate (OEP)Mg(Ⅱ)Y, the E_1/2of (OEP)Mg(Ⅱ)Yoxidation are negatively shifted.Achemical reaction following the second oxidation step is observed, the E_1/2of the reaction product is obtained.Mechanism of (OEP)Mg(Ⅱ) in the halogen and OH^-anions titration process has been proposed.

Key words: Electrochemistry titration, Spectroelectrochemistry, Magnesium porphyrin, Axial coordination

CLC Number:

O646

TrendMD:

WANG Zhen-Xin, LIU Dian-Jun, LIN Xiang-Qin. A Mechanistic Study of Electrochemical Oxidation Processes of (OEP)Mg(Ⅱ) in the Presence of Anions[J]. Chem. J. Chinese Universities, 1999, 20(9): 1442.

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A Mechanistic Study of Electrochemical Oxidation Processes of (OEP)Mg(Ⅱ) in the Presence of Anions

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