Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones

The electrochemical behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones has been investigated at dme and gc electrodes in buffer solutions of pH 2.0, 4.0, 6.0, 8.0 and 10.0 using dc polarography and cyclic voltammetry and coulometry. The compounds exhibit...

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Main Authors: V. Nagaraju, R. Sreenivasulu, P. Venkata Ramana
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2012/598905
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author V. Nagaraju
R. Sreenivasulu
P. Venkata Ramana
author_facet V. Nagaraju
R. Sreenivasulu
P. Venkata Ramana
author_sort V. Nagaraju
collection DOAJ
description The electrochemical behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones has been investigated at dme and gc electrodes in buffer solutions of pH 2.0, 4.0, 6.0, 8.0 and 10.0 using dc polarography and cyclic voltammetry and coulometry. The compounds exhibit one well defined wave in the entire pH range of study. The process is irreversible and diffusion controlled. Controlled potential electrolysis indicates the involvement of four electrons in the reduction process. The effect of solvent, cations and anions, temperature and substitutents on the mechanism of reduction has been studied. Based on the results obtained the mechanism of reduction has been suggested.
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institution Kabale University
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publisher Wiley
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series E-Journal of Chemistry
spelling doaj-art-59e403c66055471f94b0473acc377e962025-02-03T05:48:09ZengWileyE-Journal of Chemistry0973-49452090-98102012-01-01941864187410.1155/2012/598905Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-onesV. Nagaraju0R. Sreenivasulu1P. Venkata Ramana2Department of Chemistry, Sri Krishnadevaraya University, Anantapur–515 003, Andhra Pradesh, IndiaDepartment of Chemistry, Sri Krishnadevaraya University, Anantapur–515 003, Andhra Pradesh, IndiaDepartment of Chemistry, Sri Krishnadevaraya University, Anantapur–515 003, Andhra Pradesh, IndiaThe electrochemical behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones has been investigated at dme and gc electrodes in buffer solutions of pH 2.0, 4.0, 6.0, 8.0 and 10.0 using dc polarography and cyclic voltammetry and coulometry. The compounds exhibit one well defined wave in the entire pH range of study. The process is irreversible and diffusion controlled. Controlled potential electrolysis indicates the involvement of four electrons in the reduction process. The effect of solvent, cations and anions, temperature and substitutents on the mechanism of reduction has been studied. Based on the results obtained the mechanism of reduction has been suggested.http://dx.doi.org/10.1155/2012/598905
spellingShingle V. Nagaraju
R. Sreenivasulu
P. Venkata Ramana
Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
E-Journal of Chemistry
title Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
title_full Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
title_fullStr Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
title_full_unstemmed Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
title_short Electrochemical Behaviour of N′-(p-toluenesulphonyl)-3-methyl-4-(4′-substituted arylhydrazono) pyrazolin-5-ones
title_sort electrochemical behaviour of n p toluenesulphonyl 3 methyl 4 4 substituted arylhydrazono pyrazolin 5 ones
url http://dx.doi.org/10.1155/2012/598905
work_keys_str_mv AT vnagaraju electrochemicalbehaviourofnptoluenesulphonyl3methyl44substitutedarylhydrazonopyrazolin5ones
AT rsreenivasulu electrochemicalbehaviourofnptoluenesulphonyl3methyl44substitutedarylhydrazonopyrazolin5ones
AT pvenkataramana electrochemicalbehaviourofnptoluenesulphonyl3methyl44substitutedarylhydrazonopyrazolin5ones