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Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

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Electrical Conductivity of Charge Transfer Complexes of Some Thiophene Schiff Base Complex with Nitrobenzene Acceptors

https://doi.org/10.14233/ajchem.2015.18878
M. El-Batouti
Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
E.H. El-Mossalamy
Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
N.F. Al-Harby
Chemistry Department, Faculty of Science and Arts, Al Qassim University, Al Qassim, Saudi Arabia

Corresponding Author(s) : M. El-Batouti

mervette_b@yahoo.com

Asian Journal of Chemistry, Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

Abstract

The DC electrical conductivity of 2-aminodibenzothiophene added to three different aldehydes which are benzaldehyde, salicylaldehyde and 2,4-dihydroxybenzaldehyde and their charge transfer (CT) complexes with the acceptors, dinitrobenzene (A1), 2,4-dinitrophenol (A2), picric acid (A3) were investigated and have been studied at four different temperatures 20, 30, 40, 50 °C. The rate constant (k) and activation energy of charge transfer compounds were determined using conductivity measurements. It was observed that higher temperatures gradually increase the conductivity and it was lower with increasing molecular weight. Also the increase in the values of conductivity in some compounds was due to the difference in the replacement position of influential groups on the compounds and that of the different electronic resonance. One of the most important study was the general conduct of the donor to acceptor is subject in the form of the first order. We demonstrated that the charge transfer compounds due to the nature of polarity were responsible to a certain extent on the process of conductance. Ea has been calculated for compounds, it was noted that the discrepancy in values was due to different values of the molecular structure of donors in addition to the different groups replaced them.

Keywords

Charge transfer complex Conductivity Thiophene-Schiff base Picric acid Equilibrium constant
El-Batouti, M., El-Mossalamy, E., & Al-Harby, N. (2015). Electrical Conductivity of Charge Transfer Complexes of Some Thiophene Schiff Base Complex with Nitrobenzene Acceptors. Asian Journal of Chemistry, 27(7), 2719–2724. https://doi.org/10.14233/ajchem.2015.18878
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