•  
  •  
 

Abstract

The electrochemical reductive behavior of 3,4,5,6-tetrachloro-2-trichloropyridine(heptachloropyridine) on silver electrode in the mixture of acetonitrile and water solutions containing TBAP was investigated by cyclic voltammetry.The influences of scan rate,concentration and temperature on the electrochemical behavior were discussed.It was shown that the reduction of heptachloropyridine on the silver electrode was a diffusion-controlled irreversible process.The diffusion coefficient of heptachloropyridine in the acetonitrile solution was 3.0×10-5 cm2/s.The mechanism of the dechloration of 3,4,5,6-tetrachloro-2-trichloropyridine was also discussed.

Keywords

3, 4, 5, 6-tetrachloro-2-trichloropyridine, silver electrode, electro-reduce

Publication Date

2008-08-28

Online Available Date

2008-08-28

Revised Date

2008-08-28

Received Date

2008-08-28

References

[1]Sudarshan K Malhotra.Reduction of trichloromethylpyr-idines to dichloromethylpyridines:US,4499276[P].1985.
[2]James N Seiber.Electrolytic reduction of halogenatedhalomethylpyridine:US,3687827[P].1972.
[3]Leo R Morris,Midland Mich.Preparation of(dichlo-romethyl)pyridines by reductive dechlorination:US,4260766[P].1981.
[4]Wang Daquan,Ma Chun-an.Development of chinese or-ganic electrochemistry and industry[M].Beijing:Chi-na Petrochemical Press,2007.
[5]Sandra B Rondinini,Patrizia R Mussini,Federico Crip-pa,et al.Electrocatalytic potentialities of silver as acathode for organic halide reductions[J].Electrochem-istry Communications,2000,2:491-496.
[6]Sandra Rondinini,Alberto Vertova.Electrocatalysis onsilver and silver alloys for dichloromethane and trichlo-romethane dehalogenation[J].Electrochimica Acta,2004,49:4035-4046.
[7]Silvia Ardizzone,Giuseppe Cappelletti,Patrizia RomanaMussini,et al.Adsorption competition effects in theelectrocatalytic reduction of organic halides on silver[J].Journal of Electroanalytical Chemistry,2002,532:285-293.
[8]Ma Chun-an,Xu Yinghua,Zhu Yinghong,et al.Elec-trocatalytic reduction of 3,4,5,6-tetrachloropicol inicacid on roughened silver electrode[J].Journal of Zhe-jiang University of Technology,2006,34(5):473-477.
[9]Nicholson R S,Shin I.Theory of stationary electrodepolarography.Single scan and cyclic methods applied toreversible,irreversible,and kinetic systems[J].Ana-lytical Chemistry,1964,36(4):706-723.
[10]Anson F.Electrochemistry and electro analytical chem-istry[M].Beijing:Peking University Press,1981.
[11]Ma Chun-an.Introduction to synthetic organic electro-chemistry[M].Beijing:Science Press,2002.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.