Physical and Chemical Properties of Dimedone “Base Schiff” for Organic Semiconductor Applications
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One pot synthesis of “Schiff” base is carried out in this study. The synthesis by using microwave reaction as a modern method is realized from 4-dimehtylamino-5,5-dimethyl-1,3-cyclohexanedione, benzene 1.4-diamine and 1,3-benzodioxole-5-carbaldéhyde. The structural properties of the resulting compound were determined by NMR (1H and 13C), low-resolution mass spectrometry (ESI–MS), FTIR spectroscopy and x-ray diffraction. The product is semicrystalline material with a monoclinic unit cell. Based on the optical spectra, the compound has an optical band gap of (Eg = 2.89 eV). In addition, the dielectric spectroscopy was applied for studying the ac-electrical conductivity, dielectric constant and dielectric losses of the synthesized “Schiff” base. The results obtained from this study show that it has a promising future in the field of organic optoelectronics and their potential applications especially in photovoltaic conversion energies.
KeywordsAzomethine dimedone microwave semicrystalline optical band gap Ac-conductivity
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The authors thank Prof. E. Belarbi from the Laboratory of Synthesis and Catalysis, Ibn-Khal-doun University (Tiaret, Algeria), for the XRD and the electrical measurements. The authors also thank Prof. M. Salle´ from the Laboratory of MoltecH-Anjou (Angers, France), for the help in the mass spectroscopy measurement. The author C. Benhaoua, would like to think personally Prof. A. Kadari, and Prof K. Djakhdene from the Ibn-Khaldoun University (Tiaret, Algeria), for many helpful discussions during the progress of this work.
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