Polarographic Study of Some Arylidene-2-Pyridylhydrazones

Journal Title, Volume, Page:

An-Najah University Journal for Research - Natural Sciences - Volume 7, Issue 1

Year of Publication:

1992

Link:

http://scholar.najah.edu/publication/journal-article/polarographic-study-some-ar...

Authors:

Mohammed A. Al-Nuri

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Mohammed A. Hannoun

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Ali Z. Abu-Zuhri

Department of Chemistry, Faculty of Science, United Arab Emirates University, Al-Ain, U. A. E

Jamal S. Shalabi (M. Sc. Thesis)

Preferred Abstract (Original):

The polarographic behaviors of some arylidene-2-pyridyl hydrazones have been studied in aqueous Britton - Robinson buffer solution containing 40% ethanol using DC polarographic technique. In the pH range 1.9 - 6.4 the observed single irreversible 4 - electron reduction wave is attributed to the splitting of the N - N bond and saturation of C = N centre. All compounds studied are polarographically inactive in alkaline medium. The effect of pH on the limiting current and E 112 as well as the reduction mechanism and the effect of substituent's are discussed and compared with similar compounds. The kinetic parameters of the electrode reaction have been calculated.

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Polarographic Study of Some Arylidene-2-Pyridylhydrazones