Abstract − Analytical Sciences, 20(8), 1179 (2004).
Electrochemical Reduction of 1-{[(4-Halophenyl)imino]methyl}-2-naphthols in Aprotic Media
Mustafa UÇAR,* Kamran POLAT,* M. Levent AKSU,** and Hüseyin ÜNVER***
*Department of Chemistry, Faculty of Science, Ankara University, 06100 Tando gan, Ankara, Turkey
**Department of Chemistry, Faculty of Education, Gazi University, 06500 Be sevler, Ankara, Turkey
***Department of Physics, Faculty of Science, Ankara University, 06100 Tando gan, Ankara, Turkey
**Department of Chemistry, Faculty of Education, Gazi University, 06500 Be sevler, Ankara, Turkey
***Department of Physics, Faculty of Science, Ankara University, 06100 Tando gan, Ankara, Turkey
The electrochemical reduction of 1-{[(4-halophenyl)imino]methyl}-2-naphthols on graphite electrodes was studied using cyclic voltammetry, chronoamperometry, constant-potential coulometry and preparative constant-potential electrolysis techniques. The data revealed that the reduction on graphite was irreversible and followed an EC mechanism. The diffusion coefficients and the number of electrons transferred were determined using the chronoamperometric Cottrell slope and the ultramicro disc Pt-electrode steady-state current. The number of electrons was also determined by bulk electrolysis. The compounds were subjected to constant-potential preparative electrolysis and the electrolysis products were purified and identified by spectroscopic methods. Based on these findings, a mechanism for the electro-reduction process is proposed.
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